{"title":"XS Power Capacitors","description":"\u003cp\u003eShop 34+ \u003cstrong\u003eXS Power Capacitors\u003c\/strong\u003e at JS Ultimate Sounds, your authorized XS Power dealer. Ultracapacitors and banks to stiffen your voltage during heavy bass hits. All in stock with fast, free shipping and expert support — order online or call our team to build the perfect system.\u003c\/p\u003e","products":[{"product_id":"sb860-31","title":"XS Power SB860-31 860F SuperBank Ultracapacitor","description":"\u003cp\u003eAn 860-farad ultracapacitor bank in a Group 31 form factor — the \u003cstrong\u003eXS Power SB860-31 SuperBank\u003c\/strong\u003e is a serious piece of equipment for builders who have moved past conventional power caps and want real farad capacity working for their system. Unlike a standard one- or two-farad capacitor, the SB860-31 stores enough energy to genuinely buffer voltage during heavy bass transients, functioning more like a lightning-fast secondary battery than a simple filter component.\u003c\/p\u003e\u003cp\u003eThe practical result is dramatic: headlights stop dimming, amplifier rails stay stable, and the dynamic headroom of the entire system improves — especially noticeable on high-excursion bass notes that would normally cause a voltage dip. As an \u003cem\u003eSPL capacitor bank\u003c\/em\u003e and \u003cstrong\u003evoltage stabilizer\u003c\/strong\u003e, the SB860-31 is sized right for daily-driver builds with large amplifier loads and for competitors who want a compact, self-contained \u003cem\u003efarad capacitor bank\u003c\/em\u003e that fits neatly into the existing electrical layout without requiring a complete overhaul.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eType\u003c\/td\u003e\n\u003ctd\u003eUltracapacitor Bank (SuperBank)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eCapacitance\u003c\/td\u003e\n\u003ctd\u003e860 Farads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eGroup\u003c\/td\u003e\n\u003ctd\u003eGroup 31\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eAuthorized XS Power dealer at JS Ultimate Sounds. Free shipping on orders $99+.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003ePROP 65 WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. Wash hands after handling.\u003c\/p\u003e\u003cp\u003eFor more information, visit \u003ca href=\"https:\/\/www.p65warnings.ca.gov\/\" rel=\"nofollow\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e\u003c\/p\u003e","brand":"XS Power","offers":[{"title":"Default Title","offer_id":66831151005741,"sku":"SB860-31","price":1199.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/SB860-31-turn.jpg?v=1780721189"},{"product_id":"sb1050-31","title":"XS Power SB1050-31 1050F SuperBank Ultracapacitor","description":"\u003cp\u003eAn ultracapacitor bank operates on completely different physics than a conventional battery, and the XS Power SB1050-31 harnesses that difference to solve one of car audio's most persistent problems: voltage sag under bass hits. This Group 31 farad capacitor bank stores and releases energy almost instantaneously, delivering high current bursts that a battery simply cannot match on its own.\u003c\/p\u003e\u003ch3\u003eStop Headlight Dimming, Sharpen Every Bass Note\u003c\/h3\u003e\u003cp\u003ePaired with an existing AGM battery or as a standalone power buffer, the SB1050-31 functions as an advanced voltage stabilizer that keeps your system voltage rock-solid when your amplifiers call for massive current. The SPL capacitor bank design means cleaner, tighter bass transients and the end of headlight dimming during listening sessions — a measurable upgrade for any serious car audio system that outpaces the alternator's ability to respond instantly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAuthorized XS Power dealer at JS Ultimate Sounds. Free shipping on orders $99+.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003ePROP 65 WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. Wash hands after handling.\u003c\/p\u003e\u003cp\u003eFor more information, visit \u003ca href=\"https:\/\/www.p65warnings.ca.gov\/\" rel=\"nofollow\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e\u003c\/p\u003e","brand":"XS Power","offers":[{"title":"Default Title","offer_id":66831155331117,"sku":"SB1050-31","price":1099.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/SB1050-31-turn.jpg?v=1780721558"},{"product_id":"sb430-16","title":"XS Power SB430-16 430F SuperBank Ultracapacitor","description":"\u003cp\u003eCompact and competition-proven, the XS Power SB430-16 packs serious ultracapacitor technology into a Group 34-sized enclosure, making it the ideal power cap upgrade for builds where space rules out a full Group 31 bank. This farad capacitor bank charges and discharges with the speed of a true ultracapacitor, responding to amplifier demands faster than any battery technology can.\u003c\/p\u003e\u003ch3\u003eVoltage Stabilization That Fits Your Build\u003c\/h3\u003e\u003cp\u003eHeadlight dimming and voltage dips during heavy bass hits are symptoms of a system that has outpaced its power supply — the SB430-16 addresses that directly by acting as a high current capacitor buffer between your battery and your amplifiers. Whether you are fine-tuning a daily driver or sharpening the transient response of a competition SPL system, this sealed car audio capacitor brings measurable stability without the bulk of larger ultracapacitor banks.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAuthorized XS Power dealer at JS Ultimate Sounds. Free shipping on orders $99+.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003ePROP 65 WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. Wash hands after handling.\u003c\/p\u003e\u003cp\u003eFor more information, visit \u003ca href=\"https:\/\/www.p65warnings.ca.gov\/\" rel=\"nofollow\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e\u003c\/p\u003e","brand":"XS Power","offers":[{"title":"Default Title","offer_id":66831155363885,"sku":"SB430-16","price":559.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/SB430-16-turn.jpg?v=1780721564"},{"product_id":"sb1500-75","title":"XS Power SB1500-75 1,500F 12V SuperBank Ultracapacitor","description":"\u003cp\u003eWhen maximum energy buffering is the priority, the XS Power SB1500-75 stands at the top of the SuperBank lineup. This 12V Group 31 ultracapacitor bank holds 1,500 farads of instantaneous energy storage, delivering a power cap solution that virtually eliminates voltage sag regardless of how aggressive your amplifier load gets.\u003c\/p\u003e\u003ch3\u003eThe Ultimate Voltage Stabilizer for Serious Systems\u003c\/h3\u003e\u003cp\u003eDesigned for extreme SPL builds and high-output daily-driver systems running power levels that challenge even healthy alternators, the SB1500-75 acts as an intelligent high current capacitor reservoir that charges instantly and discharges faster than any battery can respond. Stop headlight dimming and audible compression from voltage drops — this farad capacitor bank keeps your system voltage stable through every transient, translating directly into cleaner, louder, more accurate bass reproduction.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAuthorized XS Power dealer at JS Ultimate Sounds. Free shipping on orders $99+.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003ePROP 65 WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. Wash hands after handling.\u003c\/p\u003e\u003cp\u003eFor more information, visit \u003ca href=\"https:\/\/www.p65warnings.ca.gov\/\" rel=\"nofollow\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e\u003c\/p\u003e","brand":"XS Power","offers":[{"title":"Default Title","offer_id":66831155396653,"sku":"SB1500-75","price":1499.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/SB1500-75-turn.jpg?v=1780721569"},{"product_id":"sb1260-31","title":"XS Power SB1260-31 1,260F 12V SuperBank Ultracapacitor","description":"\u003cp\u003eThe XS Power SB1260-31 SuperBank brings 12V ultracapacitor technology to the Group 31 form factor, offering a massive farad capacitor bank that integrates cleanly into the standard battery tray locations used in most competition and street vehicles. Its 1,260 farad capacity positions it as a top-tier power cap for systems where voltage stability under load is non-negotiable.\u003c\/p\u003e\u003ch3\u003eGroup 31 Format, Competition-Grade Capacitance\u003c\/h3\u003e\u003cp\u003eUnlike a standard battery that struggles to respond to fast transient current demands, this high current ultracapacitor bank charges and discharges at near-instantaneous rates, acting as a surge reservoir that keeps amplifier voltage rock-steady through every bass note. The SB1260-31 is the solution for SPL competitors and serious daily-driver enthusiasts alike who want to stop headlight dimming and voltage sag without sacrificing installation simplicity.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eType\u003c\/td\u003e\n\u003ctd\u003e12-Volt Super Capacitor Bank\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eGroup\u003c\/td\u003e\n\u003ctd\u003e31\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eMax Power\u003c\/td\u003e\n\u003ctd\u003e10,000 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eFarads\u003c\/td\u003e\n\u003ctd\u003e1,260\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eUltra Lightweight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eTerminal Hardware\u003c\/td\u003e\n\u003ctd\u003eM6 Included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eAuthorized XS Power dealer at JS Ultimate Sounds. Free shipping on orders $99+.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003ePROP 65 WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. Wash hands after handling.\u003c\/p\u003e\u003cp\u003eFor more information, visit \u003ca href=\"https:\/\/www.p65warnings.ca.gov\/\" rel=\"nofollow\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e\u003c\/p\u003e","brand":"XS Power","offers":[{"title":"Default Title","offer_id":66831155494957,"sku":"SB1260-31","price":999.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/SB1260-31-turn.jpg?v=1780721574"},{"product_id":"sb1260-27","title":"XS Power SB1260-27 1,260F 12V SuperBank Ultracapacitor","description":"\u003cp\u003eSharing the same 1,260 farad ultracapacitor capacity as its Group 31 sibling, the XS Power SB1260-27 offers that same SPL capacitor bank performance in a Group 27 footprint — a meaningful option for builders whose vehicle layout or available tray space favors the slightly narrower form factor. The sealed 12V design is just as capable at voltage stabilization regardless of which group size fits your build.\u003c\/p\u003e\u003ch3\u003eSame Power, Different Footprint\u003c\/h3\u003e\u003cp\u003eWhen amplifiers pull heavy current faster than an alternator can respond, the SB1260-27 acts as the buffer — a high current capacitor bank that absorbs transient loads and prevents the headlight dimming and audible voltage sag that plague underpowered systems. Whether your build is chasing SPL competition scores or you simply want a refined daily-driver system that stays composed at high volume, this farad capacitor bank delivers.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eType\u003c\/td\u003e\n\u003ctd\u003e12-Volt Super Capacitor Bank\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eGroup\u003c\/td\u003e\n\u003ctd\u003e27\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eMax Power\u003c\/td\u003e\n\u003ctd\u003e10,000 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eFarads\u003c\/td\u003e\n\u003ctd\u003e1,260\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eUltra Lightweight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eTerminal Hardware\u003c\/td\u003e\n\u003ctd\u003eM6 Included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eAuthorized XS Power dealer at JS Ultimate Sounds. Free shipping on orders $99+.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003ePROP 65 WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. Wash hands after handling.\u003c\/p\u003e\u003cp\u003eFor more information, visit \u003ca href=\"https:\/\/www.p65warnings.ca.gov\/\" rel=\"nofollow\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e\u003c\/p\u003e","brand":"XS Power","offers":[{"title":"Default Title","offer_id":66831155527725,"sku":"SB1260-27","price":999.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/SB1260-27-turn.jpg?v=1780721580"},{"product_id":"sb1000-75","title":"XS Power SB1000-75 1,000F 12V SuperBank Ultracapacitor","description":"\u003cp\u003eThe XS Power SB1000-75 is a 12V SuperBank ultracapacitor delivering 1,000 farads of instantaneous energy buffering for car audio systems that have outgrown what a battery alone can provide. Its power cap technology charges from your vehicle electrical system in seconds and discharges with the speed physics demands when your amplifiers swing hard.\u003c\/p\u003e\u003ch3\u003eA Thousand Farads of Voltage Stability\u003c\/h3\u003e\u003cp\u003eRunning a system powerful enough to cause headlight dimming or audible dynamic compression from voltage sag? The SB1000-75 acts as a high current capacitor reservoir between your charging system and your amplifiers, smoothing transient loads and keeping voltage stable through every hit. This SPL capacitor bank is the kind of upgrade that makes a measurable difference in system performance — cleaner transients, tighter bass, and a voltage stabilizer that never slows down.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eType\u003c\/td\u003e\n\u003ctd\u003e12-Volt Super Capacitor Bank\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eGroup\u003c\/td\u003e\n\u003ctd\u003eGC12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eMax Power\u003c\/td\u003e\n\u003ctd\u003e8,000 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eFarads\u003c\/td\u003e\n\u003ctd\u003e1,000 Farads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eUltra Lightweight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eTerminal Hardware\u003c\/td\u003e\n\u003ctd\u003eM6 Terminal Hardware Included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eAuthorized XS Power dealer at JS Ultimate Sounds. Free shipping on orders $99+.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003ePROP 65 WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. Wash hands after handling.\u003c\/p\u003e\u003cp\u003eFor more information, visit \u003ca href=\"https:\/\/www.p65warnings.ca.gov\/\" rel=\"nofollow\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e\u003c\/p\u003e","brand":"XS Power","offers":[{"title":"Default Title","offer_id":66831155560493,"sku":"SB1000-75","price":999.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/SB1000-75-turn.jpg?v=1780721585"},{"product_id":"sb1000-31","title":"XS Power SB1000-31 1,000F 12V SuperBank Ultracapacitor","description":"\u003cp\u003eHoused in a Group 31 enclosure that fits standard battery trays across countless vehicles, the XS Power SB1000-31 brings 12V ultracapacitor technology to car audio builds where installation simplicity is as important as raw performance. The farad capacitor bank delivers 1,000 farads of near-instantaneous energy storage, acting as the fastest power source your amplifiers have ever had access to.\u003c\/p\u003e\u003ch3\u003eStandard Tray, Uncommon Performance\u003c\/h3\u003e\u003cp\u003eWhether you are competing at SPL events or building the cleanest-sounding daily driver on the block, this high current capacitor bank eliminates the voltage sag and headlight dimming that rob your system of its best performance. The SB1000-31 pairs naturally with an existing AGM battery to form a complete power solution — battery for sustained output, ultracapacitor for instantaneous transient demand.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eType\u003c\/td\u003e\n\u003ctd\u003e12-Volt Super Capacitor Bank\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eGroup\u003c\/td\u003e\n\u003ctd\u003eGroup 31\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eMax Power\u003c\/td\u003e\n\u003ctd\u003e8,000 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eFarads\u003c\/td\u003e\n\u003ctd\u003e1,000 Farads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eUltra Lightweight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eTerminal Hardware\u003c\/td\u003e\n\u003ctd\u003eM6 Terminal Hardware Included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eAuthorized XS Power dealer at JS Ultimate Sounds. Free shipping on orders $99+.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003ePROP 65 WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. Wash hands after handling.\u003c\/p\u003e\u003cp\u003eFor more information, visit \u003ca href=\"https:\/\/www.p65warnings.ca.gov\/\" rel=\"nofollow\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e\u003c\/p\u003e","brand":"XS Power","offers":[{"title":"Default Title","offer_id":66831155658797,"sku":"SB1000-31","price":999.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/SB1000-31-turn.jpg?v=1780721590"},{"product_id":"sb1000-27","title":"XS Power SB1000-27 1,000F 12V SuperBank Ultracapacitor","description":"\u003cp\u003eFor builders who need Group 27 dimensions without sacrificing ultracapacitor performance, the XS Power SB1000-27 delivers 1,000 farads in a 12V sealed package that slots into a narrower tray footprint. The SuperBank design is identical in electrical behavior to its Group 31 counterpart — the same high current capacitor technology, just shaped to fit where a Group 27 lives.\u003c\/p\u003e\u003ch3\u003eGroup 27 Fit, Uncompromised Voltage Stabilization\u003c\/h3\u003e\u003cp\u003eHeadlight dimming and dynamic compression during heavy bass transients are the symptoms of a system calling for more current than the charging system can deliver instantly — the SB1000-27 answers that call. This SPL capacitor bank functions as an ideal complement to an AGM battery, buffering the instantaneous demands so your battery and alternator handle the sustained load while the ultracapacitor handles the peaks.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eType\u003c\/td\u003e\n\u003ctd\u003e12-Volt Super Capacitor Bank\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eGroup\u003c\/td\u003e\n\u003ctd\u003eGroup 27\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eMax Power\u003c\/td\u003e\n\u003ctd\u003e8,000 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eFarads\u003c\/td\u003e\n\u003ctd\u003e1,000 Farads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eUltra Lightweight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eTerminal Hardware\u003c\/td\u003e\n\u003ctd\u003eM6 Terminal Hardware Included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eAuthorized XS Power dealer at JS Ultimate Sounds. Free shipping on orders $99+.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003ePROP 65 WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. Wash hands after handling.\u003c\/p\u003e\u003cp\u003eFor more information, visit \u003ca href=\"https:\/\/www.p65warnings.ca.gov\/\" rel=\"nofollow\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e\u003c\/p\u003e","brand":"XS Power","offers":[{"title":"Default Title","offer_id":66831155691565,"sku":"SB1000-27","price":999.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/SB1000-27-turn.jpg?v=1780721595"},{"product_id":"sb630-34","title":"XS Power SB630-34 630F 12V SuperBank Ultracapacitor","description":"\u003cp\u003eThe XS Power SB630-34 12V SuperBank ultracapacitor slots directly into a standard Group 34 battery space and delivers an enormous 630 farads of instantaneous energy storage. Unlike a traditional battery, this \u003cstrong\u003ehigh current capacitor\u003c\/strong\u003e releases and absorbs power virtually instantly, acting as a rock-solid \u003cstrong\u003evoltage stabilizer\u003c\/strong\u003e that keeps rail voltage from sagging when your amplifiers hit a heavy transient. The result is tighter, louder bass and dramatically reduced headlight dimming, making it equally valuable for daily-driver big stereos and dedicated SPL vehicles.\u003c\/p\u003e\u003cp\u003eAs a drop-in \u003cstrong\u003efarad capacitor bank\u003c\/strong\u003e in the familiar Group 34 footprint, the XS Power SB630-34 pairs naturally with XS Power AGM or lithium batteries to form a complete power storage system. The \u003cstrong\u003eSPL capacitor bank\u003c\/strong\u003e architecture is designed to outlast conventional film caps, giving competitors and enthusiasts a more reliable solution without the maintenance headaches of traditional \u003cstrong\u003epower cap\u003c\/strong\u003e designs.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eType\u003c\/td\u003e\n\u003ctd\u003e12-Volt Super Capacitor Bank\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eGroup Size\u003c\/td\u003e\n\u003ctd\u003eGroup 34\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eMax Power\u003c\/td\u003e\n\u003ctd\u003e5,000 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eCapacitance\u003c\/td\u003e\n\u003ctd\u003e630 Farads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eUltra Lightweight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eTerminal Hardware\u003c\/td\u003e\n\u003ctd\u003eM6 Terminal Hardware Included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eAuthorized XS Power dealer at JS Ultimate Sounds. Free shipping on orders $99+.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePROP 65 WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. Wash hands after handling.\u003c\/p\u003e\n\u003cp\u003eFor more information, visit \u003ca href=\"https:\/\/www.p65warnings.ca.gov\/\" rel=\"nofollow\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e\u003c\/p\u003e","brand":"XS Power","offers":[{"title":"Default Title","offer_id":66831161098285,"sku":"SB630-34","price":499.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/SB630-34-turn.jpg?v=1780722260"},{"product_id":"sb630-51r","title":"XS Power SB630-51R 630F 12V SuperBank Ultracapacitor","description":"\u003cp\u003eBuilt around the Group 51R footprint, the XS Power SB630-51R 12V SuperBank packs a full 630 farads of \u003cstrong\u003eultracapacitor\u003c\/strong\u003e capacity into a size that fits neatly in tight engine bays and compact front-battery locations. That massive farad rating means the SB630-51R can deliver enormous instantaneous current on demand, serving as a powerful \u003cstrong\u003evoltage stabilizer\u003c\/strong\u003e that keeps your system voltage stable when amplifiers slam into a low-frequency peak. Front-stage power, secondary support, or a clean replacement in an existing Group 51R slot — this unit handles all three scenarios.\u003c\/p\u003e\u003cp\u003eThe XS Power SB630-51R is an elite-grade \u003cstrong\u003eSPL capacitor bank\u003c\/strong\u003e that bridges the gap between a traditional \u003cstrong\u003epower cap\u003c\/strong\u003e and a full battery replacement. Its \u003cstrong\u003ehigh current capacitor\u003c\/strong\u003e cells charge and discharge with minimal internal resistance, which translates directly to crisper transient response from your subwoofers and a measurable improvement in system dynamics compared to a battery alone.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eType\u003c\/td\u003e\n\u003ctd\u003e12-Volt Super Capacitor Bank\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eGroup Size\u003c\/td\u003e\n\u003ctd\u003eGroup 51R (Reverse Terminals)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eMax Power\u003c\/td\u003e\n\u003ctd\u003e5,000 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eCapacitance\u003c\/td\u003e\n\u003ctd\u003e630 Farads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eUltra Lightweight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eTerminal Hardware\u003c\/td\u003e\n\u003ctd\u003eM6 Terminal Hardware Included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eAuthorized XS Power dealer at JS Ultimate Sounds. Free shipping on orders $99+.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePROP 65 WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. Wash hands after handling.\u003c\/p\u003e\n\u003cp\u003eFor more information, visit \u003ca href=\"https:\/\/www.p65warnings.ca.gov\/\" rel=\"nofollow\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e\u003c\/p\u003e","brand":"XS Power","offers":[{"title":"Default Title","offer_id":66831161131053,"sku":"SB630-51R","price":499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/SB630-51R-turn.jpg?v=1780722265"},{"product_id":"sb630-1200","title":"XS Power SB630-1200 630F 12V SuperBank Ultracapacitor","description":"\u003cp\u003eThe XS Power SB630-1200 12V SuperBank ultracapacitor is engineered for custom installations where Group sizing does not dictate placement. With 630 farads of \u003cstrong\u003ehigh current capacitor\u003c\/strong\u003e capacity in a flexible mounting format, this unit is purpose-built for builders who design trunk-mounted power systems, fabricated battery boxes, or unconventional layouts that demand raw capacitor performance without a fixed group footprint. The \u003cstrong\u003epower cap\u003c\/strong\u003e era is over: the SB630-1200 represents what a serious \u003cstrong\u003efarad capacitor bank\u003c\/strong\u003e looks like in the modern era of car audio.\u003c\/p\u003e\u003cp\u003eVoltage sag and headlight dimming are symptoms of a power system that cannot react fast enough to transient demands, and the XS Power SB630-1200 addresses that problem at its core. By acting as a \u003cstrong\u003evoltage stabilizer\u003c\/strong\u003e right at the load, this \u003cstrong\u003eultracapacitor\u003c\/strong\u003e bank keeps rail voltage rock solid during the hardest hits, giving your amplifiers the clean power they need to reproduce every note accurately.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eType\u003c\/td\u003e\n\u003ctd\u003e12-Volt Super Capacitor Bank\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eMax Power\u003c\/td\u003e\n\u003ctd\u003e5,000 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eCapacitance\u003c\/td\u003e\n\u003ctd\u003e630 Farads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eUltra Lightweight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eTerminal Hardware\u003c\/td\u003e\n\u003ctd\u003eM6 Terminal Hardware Included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eAuthorized XS Power dealer at JS Ultimate Sounds. Free shipping on orders $99+.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePROP 65 WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. Wash hands after handling.\u003c\/p\u003e\n\u003cp\u003eFor more information, visit \u003ca href=\"https:\/\/www.p65warnings.ca.gov\/\" rel=\"nofollow\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e\u003c\/p\u003e","brand":"XS Power","offers":[{"title":"Default Title","offer_id":66831161196589,"sku":"SB630-1200","price":499.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/SB630-1200-turn.jpg?v=1780722276"},{"product_id":"sb500-27","title":"XS Power SB500-27 500F 12V SuperBank Ultracapacitor","description":"\u003cp\u003eFitting a Group 27 battery location, the XS Power SB500-27 12V SuperBank brings 500 farads of true \u003cstrong\u003eultracapacitor\u003c\/strong\u003e storage to full-size vehicle platforms that have the space for a larger footprint. That capacitance level puts it squarely in \u003cstrong\u003eSPL capacitor bank\u003c\/strong\u003e territory, capable of absorbing and releasing energy faster than any lead-acid or lithium battery can manage alone. Truck and SUV builds with room for a Group 27 position will find the SB500-27 a natural upgrade that stops headlight dimming and firms up bass transients without adding excessive mass.\u003c\/p\u003e\u003cp\u003eThe XS Power SB500-27 is a premium \u003cstrong\u003efarad capacitor bank\u003c\/strong\u003e that complements rather than replaces your primary battery, teaming up with your existing charging system to deliver on-demand current when amplifiers spike. Its \u003cstrong\u003ehigh current capacitor\u003c\/strong\u003e chemistry holds up under the repetitive discharge cycles of a show season far better than outdated stiffening capacitor designs, making it a smarter long-term investment for serious car audio enthusiasts.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eType\u003c\/td\u003e\n\u003ctd\u003e12-Volt SuperBank Ultracapacitor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eGroup Size\u003c\/td\u003e\n\u003ctd\u003eGroup 27\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eMax Power\u003c\/td\u003e\n\u003ctd\u003e4,000 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eVoltage Range\u003c\/td\u003e\n\u003ctd\u003e12.0 – 16.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eCapacitance\u003c\/td\u003e\n\u003ctd\u003e500 Farads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e11 lbs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eTerminal Hardware\u003c\/td\u003e\n\u003ctd\u003eM6 Terminal Hardware Included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eAuthorized XS Power dealer at JS Ultimate Sounds. Free shipping on orders $99+.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePROP 65 WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. Wash hands after handling.\u003c\/p\u003e\n\u003cp\u003eFor more information, visit \u003ca href=\"https:\/\/www.p65warnings.ca.gov\/\" rel=\"nofollow\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e\u003c\/p\u003e","brand":"XS Power","offers":[{"title":"Default Title","offer_id":66831161294893,"sku":"SB500-27","price":499.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/SB500-27-turn.jpg?v=1780722281"},{"product_id":"sb500-65","title":"XS Power SB500-65 500F 12V SuperBank Ultracapacitor","description":"\u003cp\u003eThe XS Power SB500-65 12V SuperBank fits a Group 65 footprint and brings 500 farads of serious \u003cstrong\u003efarad capacitor bank\u003c\/strong\u003e capacity to front-engine applications that use the larger Group 65 format common in trucks and full-size sedans. As a direct-fit \u003cstrong\u003evoltage stabilizer\u003c\/strong\u003e, it slips into the factory battery tray and immediately begins buffering voltage spikes and sags caused by high-demand amplifiers. The improvement in system stability is audible from the very first bass note after installation.\u003c\/p\u003e\u003cp\u003eCompeting or cruising, the XS Power SB500-65 earns its place as a premier \u003cstrong\u003epower cap\u003c\/strong\u003e alternative for builds that need headroom rather than just more ampere-hours. Its \u003cstrong\u003eultracapacitor\u003c\/strong\u003e cells respond to load changes in milliseconds, a speed advantage that conventional batteries simply cannot match. For anyone running a high-output amplifier setup in a vehicle that accepts a Group 65, this \u003cstrong\u003ecar audio capacitor\u003c\/strong\u003e bank is one of the smartest additions you can bolt in.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eType\u003c\/td\u003e\n\u003ctd\u003e12-Volt SuperBank Ultracapacitor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eGroup Size\u003c\/td\u003e\n\u003ctd\u003eGroup 65\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eMax Power\u003c\/td\u003e\n\u003ctd\u003e4,000 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eVoltage Range\u003c\/td\u003e\n\u003ctd\u003e12.0 – 16.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eCapacitance\u003c\/td\u003e\n\u003ctd\u003e500 Farads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e11 lbs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eTerminal Hardware\u003c\/td\u003e\n\u003ctd\u003eM6 Terminal Hardware Included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eAuthorized XS Power dealer at JS Ultimate Sounds. Free shipping on orders $99+.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePROP 65 WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. Wash hands after handling.\u003c\/p\u003e\n\u003cp\u003eFor more information, visit \u003ca href=\"https:\/\/www.p65warnings.ca.gov\/\" rel=\"nofollow\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e\u003c\/p\u003e","brand":"XS Power","offers":[{"title":"Default Title","offer_id":66831161393197,"sku":"SB500-65","price":499.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/SB500-65-turn.jpg?v=1780722287"},{"product_id":"sb500-49","title":"XS Power SB500-49 500F 12V SuperBank Ultracapacitor","description":"\u003cp\u003eSized for the Group 49 footprint found in many European and import platforms, the XS Power SB500-49 12V SuperBank makes it easy to bring 500 farads of \u003cstrong\u003eultracapacitor\u003c\/strong\u003e performance to vehicles that were previously underserved by aftermarket power storage options. The \u003cstrong\u003eSPL capacitor bank\u003c\/strong\u003e design delivers ultra-fast current on demand, ironing out the voltage spikes and dips that show up when powerful amplifiers demand more than a battery alone can supply in an instant.\u003c\/p\u003e\u003cp\u003eThe XS Power SB500-49 is a true \u003cstrong\u003ehigh current capacitor\u003c\/strong\u003e solution rather than a simple battery replacement, designed to work alongside your existing power system as a dedicated transient buffer. If you have been fighting headlight dimming or noticing bass that softens on the hardest hits, installing this \u003cstrong\u003efarad capacitor bank\u003c\/strong\u003e in your Group 49 location is one of the most direct fixes available for cars that use this common import-market battery size.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eType\u003c\/td\u003e\n\u003ctd\u003e12-Volt SuperBank Ultracapacitor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eGroup Size\u003c\/td\u003e\n\u003ctd\u003eGroup 49\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eMax Power\u003c\/td\u003e\n\u003ctd\u003e4,000 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eVoltage Range\u003c\/td\u003e\n\u003ctd\u003e12.0 – 16.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eCapacitance\u003c\/td\u003e\n\u003ctd\u003e500 Farads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e11 lbs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eTerminal Hardware\u003c\/td\u003e\n\u003ctd\u003eM6 Terminal Hardware Included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eAuthorized XS Power dealer at JS Ultimate Sounds. Free shipping on orders $99+.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePROP 65 WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. Wash hands after handling.\u003c\/p\u003e\n\u003cp\u003eFor more information, visit \u003ca href=\"https:\/\/www.p65warnings.ca.gov\/\" rel=\"nofollow\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e\u003c\/p\u003e","brand":"XS Power","offers":[{"title":"Default Title","offer_id":66831161425965,"sku":"SB500-49","price":499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/SB500-49-turn.jpg?v=1780722292"},{"product_id":"sb500-24","title":"XS Power SB500-24 500F 12V SuperBank Ultracapacitor","description":"\u003cp\u003eGroup 24 battery slots are found across a wide range of RVs, marine vessels, and larger passenger vehicles, and the XS Power SB500-24 12V SuperBank finally gives those platforms a proper \u003cstrong\u003ecar audio capacitor\u003c\/strong\u003e upgrade path. With 500 farads of \u003cstrong\u003eultracapacitor\u003c\/strong\u003e capacity, the SB500-24 acts as a fast-reacting \u003cstrong\u003evoltage stabilizer\u003c\/strong\u003e that suppresses the voltage sag that heavy audio loads create during transient peaks. Sound quality and SPL both benefit when the amplifiers are receiving consistent, sag-free voltage.\u003c\/p\u003e\u003cp\u003eWhether the vehicle is a dedicated marine audio build, a show car on a daily-driven chassis, or a powersports platform with serious sound ambitions, the XS Power SB500-24 delivers \u003cstrong\u003ehigh current capacitor\u003c\/strong\u003e performance in a form factor that drops right in. Paired with a quality AGM battery and a high-output alternator, this \u003cstrong\u003efarad capacitor bank\u003c\/strong\u003e completes a power trifecta that can handle virtually any amplifier load without complaint.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eType\u003c\/td\u003e\n\u003ctd\u003e12-Volt SuperBank Ultracapacitor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eGroup Size\u003c\/td\u003e\n\u003ctd\u003eGroup 24\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eMax Power\u003c\/td\u003e\n\u003ctd\u003e4,000 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eVoltage Range\u003c\/td\u003e\n\u003ctd\u003e12.0 – 16.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eCapacitance\u003c\/td\u003e\n\u003ctd\u003e500 Farads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e11 lbs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eTerminal Hardware\u003c\/td\u003e\n\u003ctd\u003eM6 Terminal Hardware Included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eAuthorized XS Power dealer at JS Ultimate Sounds. Free shipping on orders $99+.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePROP 65 WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. Wash hands after handling.\u003c\/p\u003e\n\u003cp\u003eFor more information, visit \u003ca href=\"https:\/\/www.p65warnings.ca.gov\/\" rel=\"nofollow\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e\u003c\/p\u003e","brand":"XS Power","offers":[{"title":"Default Title","offer_id":66831161557037,"sku":"SB500-24","price":499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/SB500-24-turn.jpg?v=1780722297"},{"product_id":"sb500-34r","title":"XS Power SB500-34R 500F 12V SuperBank Ultracapacitor","description":"\u003cp\u003eMirror-image terminal placement makes the XS Power SB500-34R 12V SuperBank the correct choice for vehicles that require a reverse-polarity Group 34R battery configuration. Beyond fitting where standard Group 34 units cannot, the SB500-34R delivers an identical 500 farads of \u003cstrong\u003eultracapacitor\u003c\/strong\u003e power cap performance, keeping your 12V rail stable under the rapid, heavy transients that come with serious car audio. If you have ever watched your headlights pulse in time with the bass line, this \u003cstrong\u003evoltage stabilizer\u003c\/strong\u003e is the cure.\u003c\/p\u003e\u003cp\u003eThe XS Power SB500-34R slots into the increasingly common reverse-terminal battery locations found in domestic trucks and some import platforms. Its \u003cstrong\u003eSPL capacitor bank\u003c\/strong\u003e architecture means it is equally at home in a weekend competition vehicle or a daily driver with an ambitious amplifier install, buffering the split-second current demands that batteries struggle to meet and giving your system the headroom it needs to perform at its best.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eType\u003c\/td\u003e\n\u003ctd\u003e12-Volt SuperBank Ultracapacitor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eGroup Size\u003c\/td\u003e\n\u003ctd\u003eGroup 34R (Reverse Terminals)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eMax Power\u003c\/td\u003e\n\u003ctd\u003e4,000 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eVoltage Range\u003c\/td\u003e\n\u003ctd\u003e12.0 – 16.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eCapacitance\u003c\/td\u003e\n\u003ctd\u003e500 Farads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e11 lbs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eTerminal Hardware\u003c\/td\u003e\n\u003ctd\u003eM6 Terminal Hardware Included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eAuthorized XS Power dealer at JS Ultimate Sounds. Free shipping on orders $99+.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePROP 65 WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. Wash hands after handling.\u003c\/p\u003e\n\u003cp\u003eFor more information, visit \u003ca href=\"https:\/\/www.p65warnings.ca.gov\/\" rel=\"nofollow\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e\u003c\/p\u003e","brand":"XS Power","offers":[{"title":"Default Title","offer_id":66831161622573,"sku":"SB500-34R","price":499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/SB500-34R-turn.jpg?v=1780722303"},{"product_id":"sb500-34","title":"XS Power SB500-34 500F 12V SuperBank Ultracapacitor","description":"\u003cp\u003eThe XS Power SB500-34 12V SuperBank is a foundational piece of any serious car audio power system, pairing 500 farads of \u003cstrong\u003eultracapacitor\u003c\/strong\u003e capacity with the universally popular Group 34 battery footprint. Builders who run a main AGM battery with this SuperBank alongside it gain the benefits of both technologies: sustained energy from the battery and nearly instantaneous high-current delivery from the \u003cstrong\u003efarad capacitor bank\u003c\/strong\u003e when the amplifiers ask for it. Headlight dimming becomes a non-issue, and the amplifiers behave as though they are running off an infinite power supply during peaks.\u003c\/p\u003e\u003cp\u003eAs one of the most versatile fitments in the SuperBank lineup, the XS Power SB500-34 is equally popular with daily-driver enthusiasts and full-blown \u003cstrong\u003eSPL capacitor bank\u003c\/strong\u003e competitors. The Group 34 footprint gives it broad vehicle compatibility, and the 500 farad rating delivers enough \u003cstrong\u003ehigh current capacitor\u003c\/strong\u003e reserve to satisfy all but the most extreme multi-kilowatt builds.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eType\u003c\/td\u003e\n\u003ctd\u003e12-Volt SuperBank Ultracapacitor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eGroup Size\u003c\/td\u003e\n\u003ctd\u003eGroup 34\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eMax Power\u003c\/td\u003e\n\u003ctd\u003e4,000 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eVoltage Range\u003c\/td\u003e\n\u003ctd\u003e12.0 – 16.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eCapacitance\u003c\/td\u003e\n\u003ctd\u003e500 Farads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e11 lbs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eTerminal Hardware\u003c\/td\u003e\n\u003ctd\u003eM6 Terminal Hardware Included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eAuthorized XS Power dealer at JS Ultimate Sounds. Free shipping on orders $99+.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePROP 65 WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. Wash hands after handling.\u003c\/p\u003e\n\u003cp\u003eFor more information, visit \u003ca href=\"https:\/\/www.p65warnings.ca.gov\/\" rel=\"nofollow\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e\u003c\/p\u003e","brand":"XS Power","offers":[{"title":"Default Title","offer_id":66831161753645,"sku":"SB500-34","price":499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/SB500-34-turn.jpg?v=1780722308"},{"product_id":"sb500-48","title":"XS Power SB500-48 500F 12V SuperBank Ultracapacitor","description":"\u003cp\u003eEngineered for the Group 48 battery location — a common factory fitment in late-model GM and import platforms — the XS Power SB500-48 12V SuperBank integrates directly into vehicles that were designed with that footprint in mind. Delivering 500 farads of dedicated \u003cstrong\u003eultracapacitor\u003c\/strong\u003e storage, it gives your amplifiers a high-speed current reservoir that eliminates voltage dips on the heaviest bass hits and removes headlight dimming from the equation entirely. The \u003cstrong\u003ehigh current capacitor\u003c\/strong\u003e cells at its core respond far faster than any battery chemistry can manage.\u003c\/p\u003e\u003cp\u003eThe XS Power SB500-48 is the right \u003cstrong\u003ecar audio capacitor\u003c\/strong\u003e bank for newer vehicles where the factory battery location dictates a Group 48 unit. Rather than fighting the OEM tray with a custom box or a different-size battery, you drop this \u003cstrong\u003efarad capacitor bank\u003c\/strong\u003e right in and immediately gain the transient performance that serious audio systems require. It pairs beautifully with an upgraded high-output alternator and a primary AGM battery to form a complete, engineered power solution.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eType\u003c\/td\u003e\n\u003ctd\u003e12-Volt SuperBank Ultracapacitor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eGroup Size\u003c\/td\u003e\n\u003ctd\u003eGroup 48\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eMax Power\u003c\/td\u003e\n\u003ctd\u003e4,000 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eVoltage Range\u003c\/td\u003e\n\u003ctd\u003e12.0 – 16.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eCapacitance\u003c\/td\u003e\n\u003ctd\u003e500 Farads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e11 lbs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eTerminal Hardware\u003c\/td\u003e\n\u003ctd\u003eM6 Terminal Hardware Included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eAuthorized XS Power dealer at JS Ultimate Sounds. Free shipping on orders $99+.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePROP 65 WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. Wash hands after handling.\u003c\/p\u003e\n\u003cp\u003eFor more information, visit \u003ca href=\"https:\/\/www.p65warnings.ca.gov\/\" rel=\"nofollow\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e\u003c\/p\u003e","brand":"XS Power","offers":[{"title":"Default Title","offer_id":66831161819181,"sku":"SB500-48","price":499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/SB500-48-turn.jpg?v=1780722314"},{"product_id":"sb500-51r","title":"XS Power SB500-51R 500F 12V SuperBank Ultracapacitor","description":"\u003cp\u003eCompact Group 51R fitment makes the XS Power SB500-51R 12V SuperBank one of the most sought-after \u003cstrong\u003eultracapacitor\u003c\/strong\u003e options for the import car audio market, where tight engine bays and reverse-terminal battery orientations are the norm. With 500 farads of \u003cstrong\u003ehigh current capacitor\u003c\/strong\u003e reserve on tap, the SB500-51R delivers instant current to your amplifiers the moment transient demand spikes, preventing voltage sag before it can rob your system of dynamics. Stop headlight dimming, tighten up bass punch, and free your amplifiers to perform as designed.\u003c\/p\u003e\u003cp\u003eThe XS Power SB500-51R shines in front-engine import builds where factory engineers specified a Group 51R battery and aftermarket builders want an upgrade without relocating to the trunk. Its \u003cstrong\u003efarad capacitor bank\u003c\/strong\u003e architecture makes it a genuinely superior alternative to the old stiffening \u003cstrong\u003epower cap\u003c\/strong\u003e approach, giving you more capacitance, a better footprint, and the XS Power engineering that has dominated the \u003cstrong\u003eSPL capacitor bank\u003c\/strong\u003e category for years.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eType\u003c\/td\u003e\n\u003ctd\u003e12-Volt SuperBank Ultracapacitor Bank\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eGroup Size\u003c\/td\u003e\n\u003ctd\u003eGroup 51R (Reverse Terminals)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eMax Power\u003c\/td\u003e\n\u003ctd\u003e4,000 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eVoltage Range\u003c\/td\u003e\n\u003ctd\u003e12.0 – 16.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eCapacitance\u003c\/td\u003e\n\u003ctd\u003e500 Farads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e11 lbs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eTerminal Hardware\u003c\/td\u003e\n\u003ctd\u003eM6 Terminal Hardware Included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eAuthorized XS Power dealer at JS Ultimate Sounds. Free shipping on orders $99+.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePROP 65 WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. Wash hands after handling.\u003c\/p\u003e\n\u003cp\u003eFor more information, visit \u003ca href=\"https:\/\/www.p65warnings.ca.gov\/\" rel=\"nofollow\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e\u003c\/p\u003e","brand":"XS Power","offers":[{"title":"Default Title","offer_id":66831161851949,"sku":"SB500-51R","price":499.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/SB500-51R-turn.jpg?v=1780722319"},{"product_id":"sb500-51","title":"XS Power SB500-51 500F 12V SuperBank Ultracapacitor","description":"\u003cp\u003eThe XS Power SB500-51 12V SuperBank brings 500 farads of genuine \u003cstrong\u003eultracapacitor\u003c\/strong\u003e performance to the compact Group 51 form factor, making it a natural choice for import builds, tight underhood installs, and any platform that runs a standard Group 51 battery. Its role is that of a dedicated \u003cstrong\u003evoltage stabilizer\u003c\/strong\u003e and transient buffer: when your amplifiers call for a burst of current that the main battery cannot supply fast enough, the SB500-51 steps in and fills that demand without hesitation.\u003c\/p\u003e\u003cp\u003eCompeting at SPL events or simply trying to get the most out of a daily-driven high-wattage audio system, the XS Power SB500-51 delivers real, measurable improvements in voltage stability and low-frequency punch. It is a far more effective solution than the single-farad \u003cstrong\u003epower cap\u003c\/strong\u003e designs of years past, offering hundreds of times more capacitance in a battery-shaped package that installs cleanly and integrates with your existing 12V system without added complexity.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eType\u003c\/td\u003e\n\u003ctd\u003e12-Volt SuperBank Ultracapacitor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eGroup Size\u003c\/td\u003e\n\u003ctd\u003eGroup 51\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eMax Power\u003c\/td\u003e\n\u003ctd\u003e4,000 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eVoltage Range\u003c\/td\u003e\n\u003ctd\u003e12.0 – 16.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eCapacitance\u003c\/td\u003e\n\u003ctd\u003e500 Farads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e11 lbs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eTerminal Hardware\u003c\/td\u003e\n\u003ctd\u003eM6 Terminal Hardware Included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eAuthorized XS Power dealer at JS Ultimate Sounds. Free shipping on orders $99+.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePROP 65 WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. Wash hands after handling.\u003c\/p\u003e\n\u003cp\u003eFor more information, visit \u003ca href=\"https:\/\/www.p65warnings.ca.gov\/\" rel=\"nofollow\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e\u003c\/p\u003e","brand":"XS Power","offers":[{"title":"Default Title","offer_id":66831161884717,"sku":"SB500-51","price":499.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/SB500-51-turn.jpg?v=1780722325"},{"product_id":"sb500-47","title":"XS Power SB500-47 500F 12V SuperBank Ultracapacitor","description":"\u003cp\u003eThe Group 47 battery footprint is common in German-engineered vehicles and certain domestic platforms, and the XS Power SB500-47 12V SuperBank fills that space with 500 farads of serious \u003cstrong\u003eultracapacitor\u003c\/strong\u003e capacity. For European car audio enthusiasts who have historically struggled to find quality aftermarket power products that fit without fabrication, the SB500-47 is a welcome direct-fit solution. Install it, connect the terminals, and immediately gain a dedicated \u003cstrong\u003ehigh current capacitor\u003c\/strong\u003e bank that keeps your 12V rail stable when the big transients hit.\u003c\/p\u003e\u003cp\u003eThe XS Power SB500-47 works best as a complement to your primary starting battery rather than a replacement, pairing with it to create a hybrid storage system that handles both sustained load and instantaneous peak demand. As a proper \u003cstrong\u003eSPL capacitor bank\u003c\/strong\u003e alternative to older \u003cstrong\u003epower cap\u003c\/strong\u003e designs, it represents a significant upgrade in both capacitance and long-term reliability for builds where the Group 47 footprint is the path of least resistance.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eType\u003c\/td\u003e\n\u003ctd\u003e12-Volt SuperBank Ultracapacitor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eGroup Size\u003c\/td\u003e\n\u003ctd\u003eGroup 47\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eMax Power\u003c\/td\u003e\n\u003ctd\u003e4,000 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eVoltage Range\u003c\/td\u003e\n\u003ctd\u003e12.0 – 16.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eCapacitance\u003c\/td\u003e\n\u003ctd\u003e500 Farads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e11 lbs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eTerminal Hardware\u003c\/td\u003e\n\u003ctd\u003eM6 Terminal Hardware Included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eAuthorized XS Power dealer at JS Ultimate Sounds. Free shipping on orders $99+.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePROP 65 WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. Wash hands after handling.\u003c\/p\u003e\n\u003cp\u003eFor more information, visit \u003ca href=\"https:\/\/www.p65warnings.ca.gov\/\" rel=\"nofollow\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e\u003c\/p\u003e","brand":"XS Power","offers":[{"title":"Default Title","offer_id":66831161917485,"sku":"SB500-47","price":499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/SB500-47-turn.jpg?v=1780722331"},{"product_id":"sb150-975l","title":"XS Power SB150-975L 150F 12V SuperBank Ultracapacitor","description":"\u003cp\u003eThe XS Power SB150-975L 12V SuperBank ultracapacitor is a compact, flexible-format \u003cstrong\u003ecar audio capacitor\u003c\/strong\u003e unit that delivers 150 farads of fast-acting energy storage wherever your installation demands it. Its custom form factor makes it ideal for builds where available real estate is limited, giving fabricators and installers a proper \u003cstrong\u003efarad capacitor bank\u003c\/strong\u003e solution they can position close to the amplifier load for maximum effectiveness. Proximity to the load is where capacitor banks earn their keep, and the SB150-975L is sized to get close.\u003c\/p\u003e\u003cp\u003eAs a \u003cstrong\u003evoltage stabilizer\u003c\/strong\u003e for mid-power systems or a supplemental buffer alongside a larger battery, the XS Power SB150-975L punches well above the class of older single-farad stiffening caps. Its \u003cstrong\u003eultracapacitor\u003c\/strong\u003e cells respond instantly to transient demand, helping your amplifiers maintain consistent performance on bass-heavy tracks without the rail sag that causes distortion and compressor clipping. A straightforward upgrade for daily-driver builds with real audio ambitions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAuthorized XS Power dealer at JS Ultimate Sounds. Free shipping on orders $99+.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePROP 65 WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. Wash hands after handling.\u003c\/p\u003e\n\u003cp\u003eFor more information, visit \u003ca href=\"https:\/\/www.p65warnings.ca.gov\/\" rel=\"nofollow\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e\u003c\/p\u003e","brand":"XS Power","offers":[{"title":"Default Title","offer_id":66831161950253,"sku":"SB150-975L","price":299.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/SB150-975L-turn.jpg?v=1780722336"},{"product_id":"sb75-5ck","title":"XS Power SB75-5CK 75F 12V SuperBank Ultracapacitor","description":"\u003cp\u003eThe XS Power SB75-5CK 12V SuperBank packages 75 farads of \u003cstrong\u003eultracapacitor\u003c\/strong\u003e energy storage in a convenient kit format, complete with the hardware needed to get it connected and contributing to your system right away. Entry-level builds, budget SPL setups, and powersports installs that need a dedicated \u003cstrong\u003ecar audio capacitor\u003c\/strong\u003e buffer without the bulk of a full Group-sized SuperBank will find the SB75-5CK a clean, practical solution. Think of it as the starting point for a power storage system that can grow as your build does.\u003c\/p\u003e\u003cp\u003eEven at 75 farads, the XS Power SB75-5CK provides meaningful transient buffering that a conventional stiffening \u003cstrong\u003epower cap\u003c\/strong\u003e cannot match on a farad-for-farad basis, thanks to its XS Power \u003cstrong\u003ehigh current capacitor\u003c\/strong\u003e cells and low-resistance construction. If you are noticing headlight dimming on bass hits with a modest amplifier, this is a cost-effective first step toward stopping it while keeping your options open to add more \u003cstrong\u003efarad capacitor bank\u003c\/strong\u003e capacity later.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e12V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eCapacitance\u003c\/td\u003e\n\u003ctd\u003e75 Farad\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eMax Power\u003c\/td\u003e\n\u003ctd\u003e600W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eIncludes\u003c\/td\u003e\n\u003ctd\u003e6,000mAh Powersports Bank, Jump Pack \u0026amp; Charging Unit, 3-to-1 USB Cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.5 lbs (0.68 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eLength\u003c\/td\u003e\n\u003ctd\u003e4.75 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e4.5 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e3 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eAuthorized XS Power dealer at JS Ultimate Sounds. Free shipping on orders $99+.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePROP 65 WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. Wash hands after handling.\u003c\/p\u003e\n\u003cp\u003eFor more information, visit \u003ca href=\"https:\/\/www.p65warnings.ca.gov\/\" rel=\"nofollow\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e\u003c\/p\u003e","brand":"XS Power","offers":[{"title":"Default Title","offer_id":66831161983021,"sku":"SB75-5CK","price":319.98,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/SB75-5CK_turn.jpg?v=1780722342"},{"product_id":"sb150-925l","title":"XS Power SB150-925L 150F 12V SuperBank Ultracapacitor","description":"\u003cp\u003eSharing the same 150 farad \u003cstrong\u003eultracapacitor\u003c\/strong\u003e specification as the SB150-975L but offered in a distinct mounting configuration, the XS Power SB150-925L 12V SuperBank gives installers another placement option for tight builds. Its flexible format means it can be positioned close to the amplifier rack or integrated into a custom battery box where a fixed-group enclosure would not fit, delivering its \u003cstrong\u003efarad capacitor bank\u003c\/strong\u003e benefits exactly where they matter most: at the load. Transient current demand spikes at the amplifier, so that is where the capacitor bank should live.\u003c\/p\u003e\u003cp\u003eFor daily-driver enthusiasts who want to reduce headlight dimming and improve bass impact without committing to a full trunk battery bank build, the XS Power SB150-925L offers a lean, purpose-focused \u003cstrong\u003evoltage stabilizer\u003c\/strong\u003e solution. Pair it with a quality AGM primary battery and a strong alternator to build a power system that handles your audio demands cleanly, without the voltage spikes and sag that degrade sound quality and stress amplifier power supplies.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAuthorized XS Power dealer at JS Ultimate Sounds. Free shipping on orders $99+.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePROP 65 WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. Wash hands after handling.\u003c\/p\u003e\n\u003cp\u003eFor more information, visit \u003ca href=\"https:\/\/www.p65warnings.ca.gov\/\" rel=\"nofollow\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e\u003c\/p\u003e","brand":"XS Power","offers":[{"title":"Default Title","offer_id":66831162015789,"sku":"SB150-925L","price":299.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/SB150-925L-turn.jpg?v=1780722347"},{"product_id":"sb150-30q","title":"XS Power SB150-30Q 150F 12V SuperBank Ultracapacitor","description":"\u003cp\u003eDesigned around the Group 30L battery envelope, the XS Power SB150-30Q 12V SuperBank provides a direct-fit \u003cstrong\u003eultracapacitor\u003c\/strong\u003e solution for vehicles that use this less-common but widely available group size. With 150 farads of \u003cstrong\u003ecar audio capacitor\u003c\/strong\u003e capacity, it provides meaningful transient buffering that helps amplifiers maintain voltage stability during heavy bass hits, reducing headlight dimming and preserving sound quality under load. The Group 30L form factor makes the SB150-30Q a unique and valuable option for builds where other SuperBank sizes would require a bracket or custom tray.\u003c\/p\u003e\u003cp\u003eThe XS Power SB150-30Q operates as a \u003cstrong\u003ehigh current capacitor\u003c\/strong\u003e bank rather than a battery, meaning it focuses entirely on rapid charge and discharge cycles rather than sustained energy delivery. This makes it the ideal partner for a properly sized AGM battery in applications where the load profile is dominated by short, intense amplifier transients rather than long, sustained draws. A smart, targeted upgrade for the right vehicle platform.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAuthorized XS Power dealer at JS Ultimate Sounds. Free shipping on orders $99+.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePROP 65 WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. Wash hands after handling.\u003c\/p\u003e\n\u003cp\u003eFor more information, visit \u003ca href=\"https:\/\/www.p65warnings.ca.gov\/\" rel=\"nofollow\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e\u003c\/p\u003e","brand":"XS Power","offers":[{"title":"Default Title","offer_id":66831162048557,"sku":"SB150-30Q","price":299.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/SB150-30Q-turn.jpg?v=1780722353"},{"product_id":"sb75-975l","title":"XS Power SB75-975L 75F 12V SuperBank Ultracapacitor","description":"\u003cp\u003eThe XS Power SB75-975L 12V SuperBank is a purpose-built \u003cstrong\u003eultracapacitor\u003c\/strong\u003e buffer in a slim, flexible form factor designed for installs where conventional group-sized batteries will not fit. Its 75 farad \u003cstrong\u003efarad capacitor bank\u003c\/strong\u003e rating positions it as a targeted transient stabilizer rather than a primary power source, most effective when mounted close to the amplifier load to minimize the electrical path between stored energy and the demand point. Compact car builds, motorcycle audio rigs, and powersports installs with minimal space will find this an approachable entry into XS Power capacitor technology.\u003c\/p\u003e\u003cp\u003eDespite its modest footprint, the XS Power SB75-975L delivers genuine \u003cstrong\u003ehigh current capacitor\u003c\/strong\u003e performance that outclasses traditional single-farad stiffening caps. If your system is experiencing light headlight dimming or subtle bass softening on heavy tracks, installing this \u003cstrong\u003epower cap\u003c\/strong\u003e upgrade near the amplifier is a direct and effective intervention that adds no meaningful weight or bulk to the build.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAuthorized XS Power dealer at JS Ultimate Sounds. Free shipping on orders $99+.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePROP 65 WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. Wash hands after handling.\u003c\/p\u003e\n\u003cp\u003eFor more information, visit \u003ca href=\"https:\/\/www.p65warnings.ca.gov\/\" rel=\"nofollow\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e\u003c\/p\u003e","brand":"XS Power","offers":[{"title":"Default Title","offer_id":66831162343469,"sku":"SB75-975L","price":199.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/SB75-975L-turn.jpg?v=1780722358"},{"product_id":"sb75-925l","title":"XS Power SB75-925L 75F 12V SuperBank Ultracapacitor","description":"\u003cp\u003eA complementary offering to the SB75-975L in a different mounting configuration, the XS Power SB75-925L 12V SuperBank brings 75 farads of \u003cstrong\u003eultracapacitor\u003c\/strong\u003e reserve to the widest possible range of installation scenarios. The flexible format prioritizes installer convenience, allowing the unit to be positioned wherever transient buffering is needed most without being constrained by a fixed battery group footprint. Marine audio builds, custom powersports installs, and creative trunk fabrications all benefit from having a genuine \u003cstrong\u003ecar audio capacitor\u003c\/strong\u003e bank that adapts to the space available.\u003c\/p\u003e\u003cp\u003eThe XS Power SB75-925L is best understood as a surgical tool in the car audio power arsenal. Rather than replacing batteries wholesale, it targets the specific weakness that batteries have under high-peak, short-duration load conditions and addresses it with \u003cstrong\u003ehigh current capacitor\u003c\/strong\u003e technology built to handle rapid, repetitive discharge cycles without degradation. A lean, effective solution for enthusiasts at the beginning of their power upgrade journey.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAuthorized XS Power dealer at JS Ultimate Sounds. Free shipping on orders $99+.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePROP 65 WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. Wash hands after handling.\u003c\/p\u003e\n\u003cp\u003eFor more information, visit \u003ca href=\"https:\/\/www.p65warnings.ca.gov\/\" rel=\"nofollow\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e\u003c\/p\u003e","brand":"XS Power","offers":[{"title":"Default Title","offer_id":66831162376237,"sku":"SB75-925L","price":199.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/SB75-925L-turn.jpg?v=1780722363"},{"product_id":"sb75-680l","title":"XS Power SB75-680L 75F 12V SuperBank Ultracapacitor","description":"\u003cp\u003eThe XS Power SB75-680L 12V SuperBank ultracapacitor shares the same 75 farad \u003cstrong\u003eultracapacitor\u003c\/strong\u003e specification found across the SB75 family but is packaged for a specific mounting orientation and application profile that sets it apart from its siblings. Wherever standard battery-group sizes are impractical, this flexible-format \u003cstrong\u003efarad capacitor bank\u003c\/strong\u003e steps in to provide genuine transient current buffering close to the load. That proximity is what makes a \u003cstrong\u003evoltage stabilizer\u003c\/strong\u003e like this effective: shorter electrical paths mean less resistance and faster response when the amplifier demands surge.\u003c\/p\u003e\u003cp\u003eBuilds with unusual packaging constraints, custom enclosures, or non-standard battery locations have an ally in the XS Power SB75-680L. As a proper \u003cstrong\u003ehigh current capacitor\u003c\/strong\u003e solution, it does what adhesive-backed, cylindrical stiffening caps cannot: deliver the rated capacitance with low equivalent series resistance, ensuring that the energy stored is actually available when the bass hits hardest. A small investment with an audible return.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAuthorized XS Power dealer at JS Ultimate Sounds. Free shipping on orders $99+.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePROP 65 WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. Wash hands after handling.\u003c\/p\u003e\n\u003cp\u003eFor more information, visit \u003ca href=\"https:\/\/www.p65warnings.ca.gov\/\" rel=\"nofollow\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e\u003c\/p\u003e","brand":"XS Power","offers":[{"title":"Default Title","offer_id":66831162409005,"sku":"SB75-680L","price":199.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/SB75-680L-turn.jpg?v=1780722369"},{"product_id":"sb75-545l","title":"XS Power SB75-545L 75F 12V SuperBank Ultracapacitor","description":"\u003cp\u003eThe XS Power SB75-545L 12V SuperBank is the smallest footprint option in the SB75 flexible-format family, engineered for builds where every cubic inch is negotiated carefully. Its 75 farad \u003cstrong\u003eultracapacitor\u003c\/strong\u003e capacity comes packaged in a compact enclosure that can be tucked into amplifier racks, mounted on custom battery boards, or integrated into fabricated enclosures without claiming the space a Group-sized battery would require. Motorcycle builds, compact car installs, and elaborate multi-component trunk builds are all realistic applications.\u003c\/p\u003e\u003cp\u003eEven at this size, the XS Power SB75-545L performs as a legitimate \u003cstrong\u003ecar audio capacitor\u003c\/strong\u003e bank rather than a cosmetic stiffening cap. Its \u003cstrong\u003ehigh current capacitor\u003c\/strong\u003e cells are engineered to the same XS Power standards found in the full-size SuperBank lineup, meaning the transient buffering capability scales predictably with the farad rating. For builds where the SB75-5CK kit format does not suit the mounting need, the SB75-545L offers an elegant alternative.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAuthorized XS Power dealer at JS Ultimate Sounds. Free shipping on orders $99+.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePROP 65 WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. Wash hands after handling.\u003c\/p\u003e\n\u003cp\u003eFor more information, visit \u003ca href=\"https:\/\/www.p65warnings.ca.gov\/\" rel=\"nofollow\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e\u003c\/p\u003e","brand":"XS Power","offers":[{"title":"Default Title","offer_id":66831162441773,"sku":"SB75-545L","price":199.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/SB75-545L-turn.jpg?v=1780722374"},{"product_id":"sb75-30q","title":"XS Power SB75-30Q 75F 12V SuperBank Ultracapacitor","description":"\u003cp\u003eFitted to the Group 30L battery footprint, the XS Power SB75-30Q 12V SuperBank gives vehicles that use this group size their own dedicated direct-fit \u003cstrong\u003eultracapacitor\u003c\/strong\u003e option. Its 75 farad \u003cstrong\u003efarad capacitor bank\u003c\/strong\u003e rating makes it well matched for smaller audio systems that need transient buffering rather than the massive farad counts required by multi-kilowatt competition builds. Drop-in compatibility with the Group 30L tray keeps the install clean and professional without requiring brackets or adapters.\u003c\/p\u003e\u003cp\u003eThe XS Power SB75-30Q is particularly well suited for compact import vehicles, older domestic platforms, and any build where the Group 30L battery is the factory-specified size. It serves as a dedicated \u003cstrong\u003evoltage stabilizer\u003c\/strong\u003e that keeps the 12V rail from sagging on bass peaks, and its \u003cstrong\u003ehigh current capacitor\u003c\/strong\u003e architecture means it can absorb regenerative spikes from amplifiers during transitions, protecting downstream components as well as improving sound quality.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAuthorized XS Power dealer at JS Ultimate Sounds. Free shipping on orders $99+.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePROP 65 WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. Wash hands after handling.\u003c\/p\u003e\n\u003cp\u003eFor more information, visit \u003ca href=\"https:\/\/www.p65warnings.ca.gov\/\" rel=\"nofollow\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e\u003c\/p\u003e","brand":"XS Power","offers":[{"title":"Default Title","offer_id":66831162474541,"sku":"SB75-30Q","price":199.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/SB75-30Q-turn.jpg?v=1780722380"},{"product_id":"sb75-20q","title":"XS Power SB75-20Q 75F 12V SuperBank Ultracapacitor","description":"\u003cp\u003eThe XS Power SB75-20Q 12V SuperBank targets vehicles with a Group 14L battery footprint, a compact size found in small imports and certain sport compact platforms that often house surprising amounts of aftermarket audio. Getting 75 farads of true \u003cstrong\u003eultracapacitor\u003c\/strong\u003e capacity into a Group 14L envelope is an engineering achievement in itself, and it means builders working with these smaller vehicles now have a clean, direct-fit \u003cstrong\u003epower cap\u003c\/strong\u003e solution rather than a compromised workaround. Your amplifiers do not know or care that the car is small — they demand clean power, and the SB75-20Q delivers it.\u003c\/p\u003e\u003cp\u003eFor the import enthusiast with a compact car and serious audio goals, the XS Power SB75-20Q represents a meaningful step in the right direction. As a \u003cstrong\u003ecar audio capacitor\u003c\/strong\u003e bank designed for the actual battery location rather than a generic enclosure, it integrates neatly and provides genuine \u003cstrong\u003evoltage stabilizer\u003c\/strong\u003e function that makes the electrical system more capable of supporting demanding amplifiers on a platform that was never designed with big watts in mind.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAuthorized XS Power dealer at JS Ultimate Sounds. Free shipping on orders $99+.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePROP 65 WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. Wash hands after handling.\u003c\/p\u003e\n\u003cp\u003eFor more information, visit \u003ca href=\"https:\/\/www.p65warnings.ca.gov\/\" rel=\"nofollow\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e\u003c\/p\u003e","brand":"XS Power","offers":[{"title":"Default Title","offer_id":66831162507309,"sku":"SB75-20Q","price":199.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/SB75-20Q-turn.jpg?v=1780722385"},{"product_id":"sb75-14q","title":"XS Power SB75-14Q 75F 12V SuperBank Ultracapacitor","description":"\u003cp\u003eSharing the Group 14L footprint with the SB75-20Q but offered as a distinct variant, the XS Power SB75-14Q 12V SuperBank gives installers working in the smallest vehicle platforms a targeted \u003cstrong\u003eultracapacitor\u003c\/strong\u003e buffer solution. Its 75 farad \u003cstrong\u003efarad capacitor bank\u003c\/strong\u003e rating is ideal for systems in the several-hundred-watt range where transient demand is real but a full Group 34 SuperBank would be impractical to fit. Compact sport compacts, kei-car platform builds, and any vehicle where under-hood space is at an absolute premium will benefit from having an option this capable in this footprint.\u003c\/p\u003e\u003cp\u003eThe XS Power SB75-14Q earns its place not through sheer farad numbers but through the quality of its \u003cstrong\u003ehigh current capacitor\u003c\/strong\u003e cells and the intelligence of its packaging. A 75 farad XS Power SuperBank unit outperforms many higher-rated generic caps because of lower ESR and more honest ratings, meaning the \u003cstrong\u003evoltage stabilizer\u003c\/strong\u003e effect is real and consistent rather than marketing-inflated. A smart, clean choice for the detail-oriented import builder.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAuthorized XS Power dealer at JS Ultimate Sounds. Free shipping on orders $99+.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePROP 65 WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. Wash hands after handling.\u003c\/p\u003e\n\u003cp\u003eFor more information, visit \u003ca href=\"https:\/\/www.p65warnings.ca.gov\/\" rel=\"nofollow\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e\u003c\/p\u003e","brand":"XS Power","offers":[{"title":"Default Title","offer_id":66831162540077,"sku":"SB75-14Q","price":199.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/SB75-14Q-turn.jpg?v=1780722391"},{"product_id":"sb75-5","title":"XS Power SB75-5 75F 12V SuperBank Ultracapacitor","description":"\u003cp\u003eThe XS Power SB75-5 12V SuperBank is the entry point into the SuperBank ultracapacitor ecosystem, bringing 75 farads of genuine \u003cstrong\u003eultracapacitor\u003c\/strong\u003e performance to builds that are just beginning to explore capacitor-based power augmentation. Unlike older cylindrical stiffening caps that offered fractional farad ratings and poor ESR, the SB75-5 delivers a meaningful \u003cstrong\u003efarad capacitor bank\u003c\/strong\u003e contribution that produces audible improvements in bass tightness and headlight stability. It is a real upgrade, not a novelty accessory.\u003c\/p\u003e\u003cp\u003eWithout a fixed group footprint, the XS Power SB75-5 is positioned for custom-mounted applications, supplemental secondary locations, or builds where the primary battery is fine but a dedicated \u003cstrong\u003ecar audio capacitor\u003c\/strong\u003e buffer near the amplifier would sharpen performance. As a \u003cstrong\u003ehigh current capacitor\u003c\/strong\u003e unit at an accessible price point, it also makes a logical starting point for someone building toward a larger SuperBank installation, proving out the technology before committing to a full Group-sized bank.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e12V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eCapacitance\u003c\/td\u003e\n\u003ctd\u003e75 Farad\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eMax Power\u003c\/td\u003e\n\u003ctd\u003e600W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.5 lbs (0.68 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eLength\u003c\/td\u003e\n\u003ctd\u003e4.75 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e4.5 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e3 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eAuthorized XS Power dealer at JS Ultimate Sounds. Free shipping on orders $99+.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePROP 65 WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. Wash hands after handling.\u003c\/p\u003e\n\u003cp\u003eFor more information, visit \u003ca href=\"https:\/\/www.p65warnings.ca.gov\/\" rel=\"nofollow\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e\u003c\/p\u003e","brand":"XS Power","offers":[{"title":"Default Title","offer_id":66831162572845,"sku":"SB75-5","price":199.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/SB75-5-turn.jpg?v=1780722396"}],"url":"https:\/\/www.jsultimatesounds.com\/collections\/xs-power-capacitors.oembed","provider":"JS Ultimate Sounds","version":"1.0","type":"link"}