{"title":"Crescendo Audio Symphony","description":"\u003cp\u003eExplore the \u003cstrong\u003eCrescendo Audio Symphony\u003c\/strong\u003e lineup at JS Ultimate Sounds. As an authorized Crescendo Audio dealer, we stock 6+ Crescendo Audio Symphony products with fast, free shipping. Find the exact Crescendo Audio Symphony model for your build and get it delivered to your door.\u003c\/p\u003e","products":[{"product_id":"crescendo-audio-symphony-s1v2-monoblock-bass-amplifier","title":"Crescendo Audio Symphony S1V2 Monoblock Bass Amplifier 1650W RMS","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePOWER\u003c\/strong\u003e — 1650W RMS at 1 ohm, optimized for subwoofer-only duty\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEFFICIENCY\u003c\/strong\u003e — Efficient design only requires 4 gauge power and ground cables\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCOOLING\u003c\/strong\u003e — Custom-tooled Symphony heatsink with a silent ball-bearing fan\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCROSSOVER\u003c\/strong\u003e — Built-in 18dB\/slope crossover network for precise system tuning\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCONTROL\u003c\/strong\u003e — Includes a remote bass knob for on-the-fly level adjustment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eThis Listing Includes:\u003c\/strong\u003e (1) Crescendo Audio Symphony S1V2 Monoblock Bass Amplifier\u003c\/p\u003e\n\u003cp\u003eThe Symphony S1V2 is the version 2, bass-optimized evolution of the S1, built to be as efficient and stable as possible for subwoofer duty. It delivers more power than the original S1 in a slightly larger frame, making it a top choice for a monoblock amplifier at this power level. Heavy copper traces in the Korean-built boards and Tiffany-style RCA input jacks keep the signal clean from input to output. A 200A fuse on the power input is suggested. Authorized Crescendo Audio dealer at JS Ultimate Sounds. Free shipping on orders $99+.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBass-only optimized Class D monoblock design\u003c\/li\u003e\n\u003cli\u003eCustom-tooled Symphony heatsink for low-profile heat dissipation\u003c\/li\u003e\n\u003cli\u003eBuilt-in 18dB\/slope crossover network\u003c\/li\u003e\n\u003cli\u003eHeavy copper traces on Korean-built boards with top-quality components\u003c\/li\u003e\n\u003cli\u003eTiffany-style RCA input jacks\u003c\/li\u003e\n\u003cli\u003eSilent ball-bearing cooling fan\u003c\/li\u003e\n\u003cli\u003eRemote bass knob included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eRMS Power @ 1 ohm\u003c\/td\u003e\n\u003ctd\u003e1650W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eRMS Power @ 2 ohm\u003c\/td\u003e\n\u003ctd\u003e1000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eRMS Power @ 4 ohm\u003c\/td\u003e\n\u003ctd\u003e600W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eRated Voltage\u003c\/td\u003e\n\u003ctd\u003e13.8V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eRecommended Power Wire\u003c\/td\u003e\n\u003ctd\u003e4 gauge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eSuggested Fuse\u003c\/td\u003e\n\u003ctd\u003e200A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e8.25\"L x 7.6\"W x 2.5\"H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Crescendo Audio","offers":[{"title":"Default Title","offer_id":66828458491949,"sku":"S1V2","price":224.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/crescendo-audio-or-symphony-s1v2-or-monoblock-bass-amplifier-or-1650w-rms__49750.1778465104.jpg?v=1780638711"},{"product_id":"crescendo-audio-symphony-s1-plus-monoblock-amplifier","title":"Crescendo Audio Symphony S1 Plus Monoblock Amplifier 2500W RMS","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePOWER\u003c\/strong\u003e — 2500W RMS at 1 ohm in a compact footprint\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTERMINALS\u003c\/strong\u003e — 1\/0 gauge power and ground terminals for efficient current transfer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCOOLING\u003c\/strong\u003e — Custom-tooled Symphony heatsink with a silent ball-bearing fan\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSUBWOOFER READY\u003c\/strong\u003e — Designed to drive subwoofers as efficiently and cleanly as possible\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCONTROL\u003c\/strong\u003e — Includes a remote bass knob for on-the-fly level adjustment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eThis Listing Includes:\u003c\/strong\u003e (1) Crescendo Audio Symphony S1 Plus Monoblock Amplifier\u003c\/p\u003e\n\u003cp\u003eThe Symphony S1 Plus packs more power than the legendary BC2000D into a smaller chassis, making it a compact powerhouse for serious subwoofer systems. Heavy copper traces in the Korean-built boards and Tiffany-style RCA input jacks deliver a clean signal path from input to output. A 250A fuse on the power input is suggested. Authorized Crescendo Audio dealer at JS Ultimate Sounds. Free shipping on orders $99+.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eClass D monoblock design optimized for subwoofers\u003c\/li\u003e\n\u003cli\u003eCustom-tooled Symphony heatsink for low-profile heat dissipation\u003c\/li\u003e\n\u003cli\u003e1\/0 gauge power and ground terminals\u003c\/li\u003e\n\u003cli\u003eHeavy copper traces on Korean-built boards with top-quality components\u003c\/li\u003e\n\u003cli\u003eTiffany-style RCA input jacks\u003c\/li\u003e\n\u003cli\u003eSilent ball-bearing cooling fan\u003c\/li\u003e\n\u003cli\u003eRemote bass knob included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eRMS Power @ 1 ohm\u003c\/td\u003e\n\u003ctd\u003e2500W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eRMS Power @ 2 ohm\u003c\/td\u003e\n\u003ctd\u003e1500W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eRMS Power @ 4 ohm\u003c\/td\u003e\n\u003ctd\u003e800W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eRated Voltage\u003c\/td\u003e\n\u003ctd\u003e13.8V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003ePower\/Ground Terminals\u003c\/td\u003e\n\u003ctd\u003e1\/0 gauge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eSuggested Fuse\u003c\/td\u003e\n\u003ctd\u003e250A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e14.5\"L x 7.6\"W x 2.5\"H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Crescendo Audio","offers":[{"title":"Default Title","offer_id":66828458524717,"sku":"S1-PLUS","price":419.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/crescendo-audio-or-symphony-s1-plus-or-monoblock-amplifier-or-2500w-rms__86560.1778465104.jpg?v=1780638717"},{"product_id":"crescendo-audio-symphony-s6-6-channel-amplifier-1200w-rms","title":"Crescendo Audio Symphony S6 6-Channel Amplifier 1200W RMS","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePOWER\u003c\/strong\u003e — Over 1200W of clean total RMS output\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVERSATILITY\u003c\/strong\u003e — 6-channel design with a 2ch\/4ch\/6ch selector switch (no RCA splitters needed)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCROSSOVER\u003c\/strong\u003e — Built-in 18dB\/slope network with LPF\/HPF and Bandpass, adjustable up to 8kHz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEFFICIENCY\u003c\/strong\u003e — Efficient design only requires 4 gauge power and ground cables\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFLEXIBILITY\u003c\/strong\u003e — Fully defeatable high-pass and low-pass filters for DSP users\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eThis Listing Includes:\u003c\/strong\u003e (1) Crescendo Audio Symphony S6 6-Channel Amplifier\u003c\/p\u003e\n\u003cp\u003eThe Symphony S6 is a highly versatile full-range Class D amplifier built to run all the speakers and subs in a typical daily-driver vehicle. It can power a high-fidelity 3-way front stage or drive a set of loudspeakers, all while offering three pairs of customizable signal outputs. Heavy copper traces in the Korean-built boards and Tiffany-style RCA input jacks keep the signal clean. A 120A to 150A fuse on the power input is suggested. Authorized Crescendo Audio dealer at JS Ultimate Sounds. Free shipping on orders $99+.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFull-range Class D 6-channel design\u003c\/li\u003e\n\u003cli\u003e2ch\/4ch\/6ch selector switch\u003c\/li\u003e\n\u003cli\u003eBuilt-in 18dB\/slope crossover with LPF\/HPF and Bandpass up to 8kHz\u003c\/li\u003e\n\u003cli\u003eDefeatable high-pass and low-pass filters\u003c\/li\u003e\n\u003cli\u003eCustom-tooled Symphony heatsink\u003c\/li\u003e\n\u003cli\u003eHeavy copper traces on Korean-built boards\u003c\/li\u003e\n\u003cli\u003eTiffany-style RCA input jacks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eChannels 1-4 @ 2 ohm\u003c\/td\u003e\n\u003ctd\u003e170W each\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eChannels 1-4 @ 4 ohm\u003c\/td\u003e\n\u003ctd\u003e100W each\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eCh 1\/2 or 3\/4 bridged @ 4 ohm\u003c\/td\u003e\n\u003ctd\u003e350W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eChannels 5-6 @ 2 ohm\u003c\/td\u003e\n\u003ctd\u003e350W each\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eChannels 5-6 @ 4 ohm\u003c\/td\u003e\n\u003ctd\u003e200W each\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eChannels 5-6 bridged @ 4 ohm\u003c\/td\u003e\n\u003ctd\u003e700W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eRated Voltage\u003c\/td\u003e\n\u003ctd\u003e13.8V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eSuggested Fuse\u003c\/td\u003e\n\u003ctd\u003e120A-150A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e13.25\"L x 7.6\"W x 2.5\"H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Crescendo Audio","offers":[{"title":"Default Title","offer_id":66828458557485,"sku":"S6","price":419.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/crescendo-audio-or-symphony-s6-or-6-channel-amplifier-or-1200w-rms__21908.1778465104.jpg?v=1780638722"},{"product_id":"symphony-s2-2-channel-amplifier","title":"Crescendo Audio Symphony S2 2-Channel Amplifier 600W RMS","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePOWER\u003c\/strong\u003e — 600W total clean RMS output, 600W bridged at 4 ohm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCROSSOVER\u003c\/strong\u003e — Built-in 18dB\/slope network with LPF\/HPF and Bandpass, adjustable up to 8kHz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEFFICIENCY\u003c\/strong\u003e — Efficient design only requires 4 gauge power and ground cables\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCOOLING\u003c\/strong\u003e — Custom-tooled Symphony heatsink for low-profile heat dissipation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSIGNAL\u003c\/strong\u003e — Tiffany-style RCA input jacks for clean signal transfer\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eThis Listing Includes:\u003c\/strong\u003e (1) Crescendo Audio Symphony S2 2-Channel Amplifier\u003c\/p\u003e\n\u003cp\u003eThe Symphony S2 is a compact full-range Class D amplifier built with the same power density that made the originals so popular. It pairs heavy copper traces on Korean-built boards with top-quality components for clean, reliable output. A 60A fuse on the power input is suggested. Authorized Crescendo Audio dealer at JS Ultimate Sounds. Free shipping on orders $99+.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFull-range Class D 2-channel design\u003c\/li\u003e\n\u003cli\u003eBuilt-in 18dB\/slope crossover with LPF\/HPF and Bandpass up to 8kHz\u003c\/li\u003e\n\u003cli\u003eCustom-tooled Symphony heatsink\u003c\/li\u003e\n\u003cli\u003eHeavy copper traces on Korean-built boards\u003c\/li\u003e\n\u003cli\u003eTiffany-style RCA input jacks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eRMS Power @ 2 ohm\u003c\/td\u003e\n\u003ctd\u003e300W x2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eRMS Power @ 4 ohm\u003c\/td\u003e\n\u003ctd\u003e190W x2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eBridged @ 4 ohm\u003c\/td\u003e\n\u003ctd\u003e600W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eRated Voltage\u003c\/td\u003e\n\u003ctd\u003e13.8V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eRecommended Power Wire\u003c\/td\u003e\n\u003ctd\u003e4 gauge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eSuggested Fuse\u003c\/td\u003e\n\u003ctd\u003e60A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e7\"L x 7.5\"W x 2.5\"H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Crescendo Audio","offers":[{"title":"Default Title","offer_id":66828458786861,"sku":"S2","price":189.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/crescendo-audio-or-symphony-s2-or-2-channel-amplifier-or-600w-rms__11557.1778465102.jpg?v=1780638758"},{"product_id":"symphony-s1-monoblock-amplifier","title":"Crescendo Audio Symphony S1 Monoblock Amplifier 1500W RMS","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePOWER\u003c\/strong\u003e — 1500W RMS at 1 ohm in a full-range design\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVERSATILITY\u003c\/strong\u003e — Runs midbass and midrange with output up to 5kHz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCROSSOVER\u003c\/strong\u003e — Built-in 18dB\/slope crossover network for precise tuning\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEFFICIENCY\u003c\/strong\u003e — Efficient design only requires 4 gauge power and ground cables\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCOOLING\u003c\/strong\u003e — Custom-tooled Symphony heatsink with a silent ball-bearing fan\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eThis Listing Includes:\u003c\/strong\u003e (1) Crescendo Audio Symphony S1 Monoblock Amplifier\u003c\/p\u003e\n\u003cp\u003eThe Symphony S1 is a full-range monoblock amplifier suitable for subwoofer duty as well as midbass and midrange thanks to its output frequency up to 5kHz. Heavy copper traces on the Korean-built boards and Tiffany-style RCA input jacks keep the signal clean from input to output. This model does not come with a bass knob. A 150A fuse on the power input is suggested. Authorized Crescendo Audio dealer at JS Ultimate Sounds. Free shipping on orders $99+.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFull-range Class D monoblock design\u003c\/li\u003e\n\u003cli\u003eBuilt-in 18dB\/slope crossover network\u003c\/li\u003e\n\u003cli\u003eOutput up to 5kHz for midbass\/midrange use\u003c\/li\u003e\n\u003cli\u003eCustom-tooled Symphony heatsink\u003c\/li\u003e\n\u003cli\u003eHeavy copper traces on Korean-built boards\u003c\/li\u003e\n\u003cli\u003eTiffany-style RCA input jacks\u003c\/li\u003e\n\u003cli\u003eSilent ball-bearing cooling fan\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eRMS Power @ 1 ohm\u003c\/td\u003e\n\u003ctd\u003e1500W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eRMS Power @ 2 ohm\u003c\/td\u003e\n\u003ctd\u003e1000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eRMS Power @ 4 ohm\u003c\/td\u003e\n\u003ctd\u003e550W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eRated Voltage\u003c\/td\u003e\n\u003ctd\u003e13.8V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eRecommended Power Wire\u003c\/td\u003e\n\u003ctd\u003e4 gauge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eSuggested Fuse\u003c\/td\u003e\n\u003ctd\u003e150A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e7\"L x 7.6\"W x 2.5\"H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Crescendo Audio","offers":[{"title":"Default Title","offer_id":66828458819629,"sku":"S1","price":214.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/crescendo-audio-or-symphony-s1-or-monoblock-amplifier-or-1500w-rms__66940.1778465102.jpg?v=1780638764"},{"product_id":"crescendo-audio-symphony-s4-4-channel-amplifier-880w-rms","title":"Crescendo Audio Symphony S4 4-Channel Amplifier 880W RMS","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePOWER\u003c\/strong\u003e — 880W total clean RMS output\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVERSATILITY\u003c\/strong\u003e — 2ch\/4ch selector switch (no RCA splitters needed)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCROSSOVER\u003c\/strong\u003e — Built-in 18dB\/slope network with LPF\/HPF and Bandpass, adjustable up to 8kHz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEFFICIENCY\u003c\/strong\u003e — Efficient design only requires 4 gauge power and ground cables\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCOOLING\u003c\/strong\u003e — Custom-tooled Symphony heatsink for low-profile heat dissipation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eThis Listing Includes:\u003c\/strong\u003e (1) Crescendo Audio Symphony S4 4-Channel Amplifier\u003c\/p\u003e\n\u003cp\u003eThe Symphony S4 is a versatile full-range Class D amplifier built with high power density and a compact footprint. Heavy copper traces on the Korean-built boards and Tiffany-style RCA input jacks deliver a clean signal path. An 80A to 100A fuse on the power input is suggested. Authorized Crescendo Audio dealer at JS Ultimate Sounds. Free shipping on orders $99+.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFull-range Class D 4-channel design\u003c\/li\u003e\n\u003cli\u003e2ch\/4ch selector switch\u003c\/li\u003e\n\u003cli\u003eBuilt-in 18dB\/slope crossover with LPF\/HPF and Bandpass up to 8kHz\u003c\/li\u003e\n\u003cli\u003eCustom-tooled Symphony heatsink\u003c\/li\u003e\n\u003cli\u003eHeavy copper traces on Korean-built boards\u003c\/li\u003e\n\u003cli\u003eTiffany-style RCA input jacks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eRMS Power @ 2 ohm\u003c\/td\u003e\n\u003ctd\u003e220W x4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eRMS Power @ 4 ohm\u003c\/td\u003e\n\u003ctd\u003e140W x4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eBridged @ 4 ohm\u003c\/td\u003e\n\u003ctd\u003e440W x2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eRated Voltage\u003c\/td\u003e\n\u003ctd\u003e13.8V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eRecommended Power Wire\u003c\/td\u003e\n\u003ctd\u003e4 gauge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eSuggested Fuse\u003c\/td\u003e\n\u003ctd\u003e80A-100A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e8.5\"L x 7.6\"W x 2.5\"H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Crescendo Audio","offers":[{"title":"Default Title","offer_id":66828458852397,"sku":"S4","price":249.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/crescendo-audio-or-symphony-s4-or-4-channel-amplifier-or-880w-rms__10842.1778465102.jpg?v=1780638769"}],"url":"https:\/\/www.jsultimatesounds.com\/collections\/crescendo-audio-symphony.oembed","provider":"JS Ultimate Sounds","version":"1.0","type":"link"}