{"title":"18\" Subwoofer + Enclosure Bundles","description":null,"products":[{"product_id":"sundown-audio-m-18-single-bundle","title":"Sundown Audio M 18 Single Bundle","description":"\u003cp\u003e\u003cstrong\u003eBundle Includes:\u003c\/strong\u003e Sundown Audio M-Series M18 2000W Subwoofer + Sundown Audio M Series MDF 18\" Single Ported Subwoofer Enclosure\u003c\/p\u003e\u003cp\u003ePriced at 10% off the combined retail price of the subwoofer and enclosure bought separately. Select your impedance below.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eSundown Audio M-Series M18 2000W Subwoofer\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Handling\u003c\/strong\u003e — 2,000W RMS \/ 4,000W Peak\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoice Coil\u003c\/strong\u003e — 3\" 4-layer round wire aluminum on aluminum former\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExcursion\u003c\/strong\u003e — 35mm one-way linear excursion\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImpedance\u003c\/strong\u003e — Available in Dual 1 Ohm and Dual 2 Ohm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor\u003c\/strong\u003e — Quad-stacked 200mm (7.87\") motor, 88mm magnet stack, 20mm top-plate\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eThis Listing Includes:\u003c\/strong\u003e (1) Sundown Audio M-Series M18 18\" Subwoofer\u003c\/p\u003e\n\u003cp\u003eThe M18 is the entry point into Sundown's Mega series, handling 2,000 watts RMS and 4,000 watts peak in Dual 1 or Dual 2 Ohm configurations. It mates a patented Mega series frame to a quad-stacked 200mm (7.87\") motor structure with an 88mm magnet stack height, a hyper-extended pole, and a full 20mm thick top-plate. A 3\" 4-layer round wire aluminum voice coil wound on a thick aluminum former drives a full 35mm one-way linear excursion. Sundown's high-stroke cooling system uses a high-velocity pole vent, a heavily vented magnetic gap, and a cast-aluminum frame-base venting system, while the Mega-Roll surround and PG linear suspension keep distortion low. Unlike other Mega platform woofers, the M-series also suits sealed and IB applications. In stock and shipping free from JS Ultimate Sounds — your authorized Sundown Audio dealer.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2,000W RMS \/ 4,000W peak in Dual 1 or Dual 2 Ohm\u003c\/li\u003e\n\u003cli\u003e3\" 4-layer round wire aluminum voice coil, 35mm one-way linear excursion\u003c\/li\u003e\n\u003cli\u003eQuad-stacked 200mm motor with hyper-extended pole and 20mm top-plate\u003c\/li\u003e\n\u003cli\u003eMega-Roll surround and computer-optimized PG linear suspension\u003c\/li\u003e\n\u003cli\u003eMagnet inner-diameter aluminum shorting ring for low inductive distortion\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\u003c\/td\u003e\n\u003ctd\u003e2,000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePeak Power\u003c\/td\u003e\n\u003ctd\u003e4,000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImpedance Options\u003c\/td\u003e\n\u003ctd\u003eDual 1 Ohm, Dual 2 Ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoice Coil\u003c\/td\u003e\n\u003ctd\u003e3\" 4-Layer Round Wire Aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLinear Excursion\u003c\/td\u003e\n\u003ctd\u003e35mm one-way\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor\u003c\/td\u003e\n\u003ctd\u003eQuad-Stacked 200mm (7.87\"), 88mm Magnet Stack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTop Plate\u003c\/td\u003e\n\u003ctd\u003e20mm thick\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003chr\u003e\u003ch2\u003eSundown Audio M Series MDF 18\" Single Ported Subwoofer Enclosure\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNet Volume\u003c\/strong\u003e - 7.0 cu ft\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTuning\u003c\/strong\u003e - 30.0 Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePort Area\u003c\/strong\u003e - 101.25 sq in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub Cutout\u003c\/strong\u003e - 16.69\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction\u003c\/strong\u003e - Dense, uniform, void-free triple refined MDF panel\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eThis Listing Includes:\u003c\/strong\u003e (1) Basshead Supply ported enclosure for the Sundown Audio M Series MDF 18\" subwoofer\u003c\/p\u003e\u003cp\u003eThis enclosure is custom built specifically for the Sundown Audio M Series MDF 18\" subwoofer. Basshead Supply's Performance Series enclosures are subwoofer-specific boxes engineered for strong, clean output, built with a refined assembly process that leaves no visible screw holes. Every box is glued with Titebond III and internally braced, then pre-wired with a recessed satin-nickel binding post and OFC 10-gauge wire - built by hand in the USA. Made to order (2-3 week lead time) and shipping from JS Ultimate Sounds, your Basshead Supply dealer.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDense, uniform, void-free triple refined MDF panel\u003c\/li\u003e\n\u003cli\u003eShips bare \/ unfinished - sanded and ready to finish your way\u003c\/li\u003e\n\u003cli\u003eRefined assembly - no visible screw holes\u003c\/li\u003e\n\u003cli\u003eGlued with Titebond III and internally braced\u003c\/li\u003e\n\u003cli\u003ePre-wired recessed satin-nickel binding post with OFC 10-gauge wire\u003c\/li\u003e\n\u003cli\u003eBuilt by hand in the USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eNet Volume\u003c\/td\u003e\n\u003ctd\u003e7.0 cu ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eTuning\u003c\/td\u003e\n\u003ctd\u003e30.0 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003ePort Area\u003c\/td\u003e\n\u003ctd\u003e101.25 sq in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003ePort Dimensions\u003c\/td\u003e\n\u003ctd\u003e18.0\" x 5.625\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eSub Cutout\u003c\/td\u003e\n\u003ctd\u003e16.69\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eDense, uniform, void-free triple refined MDF panel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eShips bare \/ unfinished - sanded and ready to finish your way\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eWiring\u003c\/td\u003e\n\u003ctd\u003ePre-wired metal binding post with 10ga OFC wire\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eDimensions (HxWxD)\u003c\/td\u003e\n\u003ctd\u003e20.0\" x 39.875\" x 25.125\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Sundown Audio","offers":[{"title":"Dual 1 Ohm","offer_id":66909595500589,"sku":null,"price":1232.53,"currency_code":"USD","in_stock":true},{"title":"Dual 2 Ohm","offer_id":66909595533357,"sku":null,"price":1232.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/Sundown_Audio_M_18_Single_Bundle_4148f48b-546a-4071-9f6f-00bc8a2fc10a.webp?v=1782369184"},{"product_id":"sundown-audio-ns-v6-18-single-bundle","title":"Sundown Audio NS v6 18 Single Bundle","description":"\u003cp\u003e\u003cstrong\u003eBundle Includes:\u003c\/strong\u003e Sundown Audio Nightshade NS-Series NS6 18\" 3500W Subwoofer NS v.6 + Sundown Audio NSV6 MDF 18\" Single Ported Subwoofer Enclosure\u003c\/p\u003e\u003cp\u003ePriced at 10% off the combined retail price of the subwoofer and enclosure bought separately. Select your impedance below.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eSundown Audio Nightshade NS-Series NS6 18\" 3500W Subwoofer NS v.6\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower\u003c\/strong\u003e — 3,500W RMS \/ 7,000W Peak\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImpedance\u003c\/strong\u003e — Dual 1-ohm or dual 2-ohm voice coils\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoice Coil\u003c\/strong\u003e — Eight-layer voice coil\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor\u003c\/strong\u003e — Neodymium with extended shorting ring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCooling\u003c\/strong\u003e — Cast aluminum cooling ring and aluminum vent ring\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eThis Listing Includes:\u003c\/strong\u003e (1) Sundown Audio Nightshade NS-Series NS6 18\" Subwoofer NS v.6\u003c\/p\u003e\n\u003cp\u003eThe Nightshade Neodymium subwoofer is engineered for powerful low end, extremely linear excursion, and next-level thermal management. It features an eight-layer voice coil for excellent power handling and an extended shorting ring to minimize distortion for smooth, accurate sound at extreme SPL levels. A cast aluminum cooling ring, aluminum vent ring, and a unique air exchange system force hot air out and cool air in. The custom-tooled basket, ultra-linear spider packs, and Ultra-linear Mega Roll V2 surround keep cone motion controlled, with an optional carbon cone\/dustcap available. In stock and shipping free from JS Ultimate Sounds — your authorized Sundown Audio dealer.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEight-layer voice coil for excellent power handling\u003c\/li\u003e\n\u003cli\u003eExtended shorting ring to minimize distortion\u003c\/li\u003e\n\u003cli\u003eUnique air exchanging system forces hot air out and cool air in\u003c\/li\u003e\n\u003cli\u003eCast aluminum cooling ring and aluminum vent ring\u003c\/li\u003e\n\u003cli\u003eUltra-linear Mega Roll V2 surround\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\u003c\/td\u003e\n\u003ctd\u003e3,500 watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePeak Power\u003c\/td\u003e\n\u003ctd\u003e7,000 watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImpedance\u003c\/td\u003e\n\u003ctd\u003eDual 1-ohm or Dual 2-ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoice Coil\u003c\/td\u003e\n\u003ctd\u003eEight-layer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor\u003c\/td\u003e\n\u003ctd\u003eNeodymium with extended shorting ring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBasket\u003c\/td\u003e\n\u003ctd\u003eCustom-tooled\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurround\u003c\/td\u003e\n\u003ctd\u003eUltra-linear Mega Roll V2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003chr\u003e\u003ch2\u003eSundown Audio NSV6 MDF 18\" Single Ported Subwoofer Enclosure\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNet Volume\u003c\/strong\u003e - 7.0 cu ft\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTuning\u003c\/strong\u003e - 30.0 Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePort Area\u003c\/strong\u003e - 101.25 sq in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub Cutout\u003c\/strong\u003e - 16.69\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction\u003c\/strong\u003e - Dense, uniform, void-free triple refined MDF panel\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eThis Listing Includes:\u003c\/strong\u003e (1) Basshead Supply ported enclosure for the Sundown Audio NSV6 MDF 18\" subwoofer\u003c\/p\u003e\u003cp\u003eThis enclosure is custom built specifically for the Sundown Audio NSV6 MDF 18\" subwoofer. Basshead Supply's Performance Series enclosures are subwoofer-specific boxes engineered for strong, clean output, built with a refined assembly process that leaves no visible screw holes. Every box is glued with Titebond III and internally braced, then pre-wired with a recessed satin-nickel binding post and OFC 10-gauge wire - built by hand in the USA. Made to order (2-3 week lead time) and shipping from JS Ultimate Sounds, your Basshead Supply dealer.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDense, uniform, void-free triple refined MDF panel\u003c\/li\u003e\n\u003cli\u003eShips bare \/ unfinished - sanded and ready to finish your way\u003c\/li\u003e\n\u003cli\u003eRefined assembly - no visible screw holes\u003c\/li\u003e\n\u003cli\u003eGlued with Titebond III and internally braced\u003c\/li\u003e\n\u003cli\u003ePre-wired recessed satin-nickel binding post with OFC 10-gauge wire\u003c\/li\u003e\n\u003cli\u003eBuilt by hand in the USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eNet Volume\u003c\/td\u003e\n\u003ctd\u003e7.0 cu ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eTuning\u003c\/td\u003e\n\u003ctd\u003e30.0 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003ePort Area\u003c\/td\u003e\n\u003ctd\u003e101.25 sq in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003ePort Dimensions\u003c\/td\u003e\n\u003ctd\u003e18.0\" x 5.625\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eSub Cutout\u003c\/td\u003e\n\u003ctd\u003e16.69\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eDense, uniform, void-free triple refined MDF panel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eShips bare \/ unfinished - sanded and ready to finish your way\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eWiring\u003c\/td\u003e\n\u003ctd\u003ePre-wired metal binding post with 10ga OFC wire\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eDimensions (HxWxD)\u003c\/td\u003e\n\u003ctd\u003e20.0\" x 39.875\" x 25.125\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Sundown Audio","offers":[{"title":"D2","offer_id":66909596090413,"sku":null,"price":1592.53,"currency_code":"USD","in_stock":true},{"title":"D1","offer_id":66909596123181,"sku":null,"price":1592.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/Sundown_Audio_NS_v6_18_Single_Bundle_ceec47ad-23ad-49a6-ac67-5de1870f42d9.webp?v=1782369139"},{"product_id":"sundown-audio-sa-v2-18-single-bundle","title":"Sundown Audio SA v2 18 Single Bundle","description":"\u003cp\u003e\u003cstrong\u003eBundle Includes:\u003c\/strong\u003e Sundown Audio SA-Series v.2 18\" Subwoofer 1250W RMS + Sundown Audio SAV2 MDF 18\" Single Ported Subwoofer Enclosure\u003c\/p\u003e\u003cp\u003ePriced at 10% off the combined retail price of the subwoofer and enclosure bought separately. Select your impedance below.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eSundown Audio SA-Series v.2 18\" Subwoofer 1250W RMS\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Handling\u003c\/strong\u003e — 1250 Watts RMS \/ 2500 Watts Peak\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImpedance\u003c\/strong\u003e — Dual 2 or Dual 4 ohm voice coils\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoice Coil\u003c\/strong\u003e — Aluminum 2.75\" former, high-temperature copper wire\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor\u003c\/strong\u003e — Larger-diameter motor with magnet ID Faraday ring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExcursion\u003c\/strong\u003e — ~19mm one-way linear, 37mm one-way x-mech\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eThis Listing Includes:\u003c\/strong\u003e (1) Sundown Audio SA-Series v.2 18\" Subwoofer\u003c\/p\u003e\n\u003cp\u003eThe SA v.2 18\" is a top-down upgrade of the original SA series, handling 1250 watts RMS \/ 2500 watts peak. Its 2.75\" aluminum-former coil punches above its weight, outperforming many 3\" coils without the added mass while allowing a wider spider. A large magnet shorting (Faraday) ring reduces distortion for smoother response across the spectrum, and a vented magnetic gap and pole piece keep the coil cool. The motor and coil mate to a robust multi-layer spider with doubled-up XL tinsel leads, a competition-grade paper cone, strong foam surround, and cast-aluminum frame. With ~19mm of one-way linear excursion and a 37mm x-mech limit, the 18\" uses a larger-diameter motor to drive its higher mass. In stock and shipping free from JS Ultimate Sounds — your authorized Sundown Audio dealer.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAluminum 2.75\" voice coil former for superior heat dissipation\u003c\/li\u003e\n\u003cli\u003eVented magnetic gap and pole piece\u003c\/li\u003e\n\u003cli\u003eMagnet ID Faraday ring for smooth acoustic response\u003c\/li\u003e\n\u003cli\u003eHigh-velocity cast-aluminum vented frame spacer ring\u003c\/li\u003e\n\u003cli\u003eSpring-loaded terminals with stitched-on double XL tinsel leads\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003ePower Handling (RMS)\u003c\/td\u003e\n\u003ctd\u003e1250 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Handling (Peak)\u003c\/td\u003e\n\u003ctd\u003e2500 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImpedance Options\u003c\/td\u003e\n\u003ctd\u003eDual 2 ohm (D2) \/ Dual 4 ohm (D4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoice Coil\u003c\/td\u003e\n\u003ctd\u003eAluminum 2.75\" former, high-temperature copper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLinear Excursion\u003c\/td\u003e\n\u003ctd\u003e~19mm one-way\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eX-Mech Limit\u003c\/td\u003e\n\u003ctd\u003e37mm one-way\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003chr\u003e\u003ch2\u003eSundown Audio SAV2 MDF 18\" Single Ported Subwoofer Enclosure\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNet Volume\u003c\/strong\u003e - 5.5 cu ft\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTuning\u003c\/strong\u003e - 30.0 Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePort Area\u003c\/strong\u003e - 79.22 sq in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub Cutout\u003c\/strong\u003e - 16.69\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction\u003c\/strong\u003e - Dense, uniform, void-free triple refined MDF panel\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eThis Listing Includes:\u003c\/strong\u003e (1) Basshead Supply ported enclosure for the Sundown Audio SAV2 MDF 18\" subwoofer\u003c\/p\u003e\u003cp\u003eThis enclosure is custom built specifically for the Sundown Audio SAV2 MDF 18\" subwoofer. Basshead Supply's Performance Series enclosures are subwoofer-specific boxes engineered for strong, clean output, built with a refined assembly process that leaves no visible screw holes. Every box is glued with Titebond III and internally braced, then pre-wired with a recessed satin-nickel binding post and OFC 10-gauge wire - built by hand in the USA. Made to order (2-3 week lead time) and shipping from JS Ultimate Sounds, your Basshead Supply dealer.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDense, uniform, void-free triple refined MDF panel\u003c\/li\u003e\n\u003cli\u003eShips bare \/ unfinished - sanded and ready to finish your way\u003c\/li\u003e\n\u003cli\u003eRefined assembly - no visible screw holes\u003c\/li\u003e\n\u003cli\u003eGlued with Titebond III and internally braced\u003c\/li\u003e\n\u003cli\u003ePre-wired recessed satin-nickel binding post with OFC 10-gauge wire\u003c\/li\u003e\n\u003cli\u003eBuilt by hand in the USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eNet Volume\u003c\/td\u003e\n\u003ctd\u003e5.5 cu ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eTuning\u003c\/td\u003e\n\u003ctd\u003e30.0 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003ePort Area\u003c\/td\u003e\n\u003ctd\u003e79.22 sq in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003ePort Dimensions\u003c\/td\u003e\n\u003ctd\u003e16.25\" x 4.875\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eSub Cutout\u003c\/td\u003e\n\u003ctd\u003e16.69\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eDense, uniform, void-free triple refined MDF panel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eShips bare \/ unfinished - sanded and ready to finish your way\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eWiring\u003c\/td\u003e\n\u003ctd\u003ePre-wired metal binding post with 10ga OFC wire\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eDimensions (HxWxD)\u003c\/td\u003e\n\u003ctd\u003e17.75\" x 39.875\" x 21.75\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Sundown Audio","offers":[{"title":"D4","offer_id":66909596647469,"sku":null,"price":864.88,"currency_code":"USD","in_stock":true},{"title":"D2","offer_id":66909596680237,"sku":null,"price":864.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/Sundown_Audio_SA_v2_18_Single_Bundle_3d249ea6-11aa-45c2-97ba-dbb6da1ce389.webp?v=1782369152"},{"product_id":"sundown-audio-u-v2-18-single-bundle","title":"Sundown Audio U v2 18 Single Bundle","description":"\u003cp\u003e\u003cstrong\u003eBundle Includes:\u003c\/strong\u003e Sundown Audio U-Series v.2 18\" Subwoofer 2000W RMS + Sundown Audio UV2 MDF 18\" Single Ported Subwoofer Enclosure\u003c\/p\u003e\u003cp\u003ePriced at 10% off the combined retail price of the subwoofer and enclosure bought separately. Select your impedance below.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eSundown Audio U-Series v.2 18\" Subwoofer 2000W RMS\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower\u003c\/strong\u003e — 2000W RMS \/ 4000W Peak\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoice Coil\u003c\/strong\u003e — Dual 2 or 4 ohm, 3\" aluminum former\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor\u003c\/strong\u003e — Double-stacked 9.4\" ferrite magnet with shorting rings and extended pole\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrame\u003c\/strong\u003e — Custom heavy-duty cast aluminum with heat-dissipation ribs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTuning\u003c\/strong\u003e — Optimized for small ported or bandpass enclosures\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eThis Listing Includes:\u003c\/strong\u003e (1) Sundown Audio U-Series v.2 18\" Subwoofer\u003c\/p\u003e\n\u003cp\u003eThe U Series is the premier standard-suspension woofer in the Sundown lineup, equally at home in the competition lanes or playing your favorite music. A double-stacked 9.4-inch ferrite magnet system is coupled to a thick top plate, with shorting rings inside the magnets and on the pole cap to smooth frequency response while doubling as a heat sink and airflow guide. The custom cast aluminum frame is substantially thicker with heat-dissipation ribs, and the extended pole piece keeps the coil under perfect control under high stress. Coil temperature is managed with machined high-velocity pole channels and 16 direct air-gap vents in the back plate. Rated at 2000W RMS (4000W peak) with dual 2 or 4 ohm coils. In stock and shipping free from JS Ultimate Sounds — your authorized Sundown Audio dealer.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAluminum 3\" voice coil former for superior heat dissipation\u003c\/li\u003e\n\u003cli\u003eDouble-stacked 9.4\" ferrite magnet with shorting rings\u003c\/li\u003e\n\u003cli\u003eSolid pole with vent channels and aluminum shorting ring cap\u003c\/li\u003e\n\u003cli\u003e16 direct air-gap vents and top-plate cooling channels\u003c\/li\u003e\n\u003cli\u003eSpring-loaded terminals accept up to 8-gauge wire\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\u003c\/td\u003e\n\u003ctd\u003e2000 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePeak Power\u003c\/td\u003e\n\u003ctd\u003e4000 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImpedance\u003c\/td\u003e\n\u003ctd\u003eDual 2 ohm or Dual 4 ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoice Coil\u003c\/td\u003e\n\u003ctd\u003e3\" aluminum former\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMagnet\u003c\/td\u003e\n\u003ctd\u003eDouble-stacked 9.4\" ferrite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrame\u003c\/td\u003e\n\u003ctd\u003eCast aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended Enclosure\u003c\/td\u003e\n\u003ctd\u003eSmall ported or bandpass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003chr\u003e\u003ch2\u003eSundown Audio UV2 MDF 18\" Single Ported Subwoofer Enclosure\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNet Volume\u003c\/strong\u003e - 5.75 cu ft\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTuning\u003c\/strong\u003e - 30.0 Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePort Area\u003c\/strong\u003e - 83.28 sq in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub Cutout\u003c\/strong\u003e - 16.9\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction\u003c\/strong\u003e - Dense, uniform, void-free triple refined MDF panel\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eThis Listing Includes:\u003c\/strong\u003e (1) Basshead Supply ported enclosure for the Sundown Audio UV2 MDF 18\" subwoofer\u003c\/p\u003e\u003cp\u003eThis enclosure is custom built specifically for the Sundown Audio UV2 MDF 18\" subwoofer. Basshead Supply's Performance Series enclosures are subwoofer-specific boxes engineered for strong, clean output, built with a refined assembly process that leaves no visible screw holes. Every box is glued with Titebond III and internally braced, then pre-wired with a recessed satin-nickel binding post and OFC 10-gauge wire - built by hand in the USA. Made to order (2-3 week lead time) and shipping from JS Ultimate Sounds, your Basshead Supply dealer.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDense, uniform, void-free triple refined MDF panel\u003c\/li\u003e\n\u003cli\u003eShips bare \/ unfinished - sanded and ready to finish your way\u003c\/li\u003e\n\u003cli\u003eRefined assembly - no visible screw holes\u003c\/li\u003e\n\u003cli\u003eGlued with Titebond III and internally braced\u003c\/li\u003e\n\u003cli\u003ePre-wired recessed satin-nickel binding post with OFC 10-gauge wire\u003c\/li\u003e\n\u003cli\u003eBuilt by hand in the USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eNet Volume\u003c\/td\u003e\n\u003ctd\u003e5.75 cu ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eTuning\u003c\/td\u003e\n\u003ctd\u003e30.0 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003ePort Area\u003c\/td\u003e\n\u003ctd\u003e83.28 sq in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003ePort Dimensions\u003c\/td\u003e\n\u003ctd\u003e16.25\" x 5.125\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eSub Cutout\u003c\/td\u003e\n\u003ctd\u003e16.9\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eDense, uniform, void-free triple refined MDF panel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eShips bare \/ unfinished - sanded and ready to finish your way\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eWiring\u003c\/td\u003e\n\u003ctd\u003ePre-wired metal binding post with 10ga OFC wire\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eDimensions (HxWxD)\u003c\/td\u003e\n\u003ctd\u003e17.75\" x 39.875\" x 22.75\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Sundown Audio","offers":[{"title":"D4","offer_id":66909597564973,"sku":null,"price":1084.03,"currency_code":"USD","in_stock":true},{"title":"D2","offer_id":66909597597741,"sku":null,"price":1084.03,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/Sundown_Audio_U_v2_18_Single_Bundle_dacccf8b-5f48-4cf1-a79e-ba28473dd8b6.webp?v=1782369173"},{"product_id":"sundown-audio-x-v3-18-single-bundle","title":"Sundown Audio X v3 18 Single Bundle","description":"\u003cp\u003e\u003cstrong\u003eBundle Includes:\u003c\/strong\u003e Sundown Audio X-Series v.3 18\" Subwoofer 2500W RMS + Sundown Audio XV3 MDF 18\" Single Ported Subwoofer Enclosure\u003c\/p\u003e\u003cp\u003ePriced at 10% off the combined retail price of the subwoofer and enclosure bought separately. Select your impedance below.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eSundown Audio X-Series v.3 18\" Subwoofer 2500W RMS\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower\u003c\/strong\u003e — 2500W RMS \/ 5000W Peak\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoice Coil\u003c\/strong\u003e — Dual 1 or 2 ohm, 3\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExcursion\u003c\/strong\u003e — Four inches peak-to-peak\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor\u003c\/strong\u003e — Triple-stacked magnet, 220mm structure, hyper-extended pole\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSurround\u003c\/strong\u003e — All-new Mega-Roll v.2\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eThis Listing Includes:\u003c\/strong\u003e (1) Sundown Audio X-Series v.3 18\" Subwoofer\u003c\/p\u003e\n\u003cp\u003eDesigned with an extended pole piece and an incredible four inches of peak-to-peak excursion, the X v.3 18\" is engineered for ultra-deep bass and high power handling. Built for the low-frequency, small-ported-box category, it can also run in up to a 50% larger enclosure for even more low-end extension. The v.3 differentiates itself with an incredibly linear suspension that maintains extremely low distortion, and steps up to a much larger 220mm motor structure (versus 190mm on v.1) with improved ventilation and the all-new Mega-Roll v.2 surround. Rated at 2500W RMS (5000W peak) with dual 1 or 2 ohm coils and built to order. In stock and shipping free from JS Ultimate Sounds — your authorized Sundown Audio dealer.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTriple-stacked magnet with hyper-extended pole\u003c\/li\u003e\n\u003cli\u003e3\" voice coil\u003c\/li\u003e\n\u003cli\u003eLarger 220mm motor structure versus 190mm on v.1\u003c\/li\u003e\n\u003cli\u003eImproved motor ventilation\u003c\/li\u003e\n\u003cli\u003eAll-new Mega-Roll v.2 surround\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\u003c\/td\u003e\n\u003ctd\u003e2500 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePeak Power\u003c\/td\u003e\n\u003ctd\u003e5000 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImpedance\u003c\/td\u003e\n\u003ctd\u003eDual 1 ohm or Dual 2 ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoice Coil\u003c\/td\u003e\n\u003ctd\u003e3\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMagnet\u003c\/td\u003e\n\u003ctd\u003eTriple-stacked\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor Structure\u003c\/td\u003e\n\u003ctd\u003e220mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePeak-to-Peak Excursion\u003c\/td\u003e\n\u003ctd\u003e4 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurround\u003c\/td\u003e\n\u003ctd\u003eMega-Roll v.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003chr\u003e\u003ch2\u003eSundown Audio XV3 MDF 18\" Single Ported Subwoofer Enclosure\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNet Volume\u003c\/strong\u003e - 7.0 cu ft\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTuning\u003c\/strong\u003e - 30.0 Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePort Area\u003c\/strong\u003e - 101.25 sq in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub Cutout\u003c\/strong\u003e - 16.69\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction\u003c\/strong\u003e - Dense, uniform, void-free triple refined MDF panel\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eThis Listing Includes:\u003c\/strong\u003e (1) Basshead Supply ported enclosure for the Sundown Audio XV3 MDF 18\" subwoofer\u003c\/p\u003e\u003cp\u003eThis enclosure is custom built specifically for the Sundown Audio XV3 MDF 18\" subwoofer. Basshead Supply's Performance Series enclosures are subwoofer-specific boxes engineered for strong, clean output, built with a refined assembly process that leaves no visible screw holes. Every box is glued with Titebond III and internally braced, then pre-wired with a recessed satin-nickel binding post and OFC 10-gauge wire - built by hand in the USA. Made to order (2-3 week lead time) and shipping from JS Ultimate Sounds, your Basshead Supply dealer.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDense, uniform, void-free triple refined MDF panel\u003c\/li\u003e\n\u003cli\u003eShips bare \/ unfinished - sanded and ready to finish your way\u003c\/li\u003e\n\u003cli\u003eRefined assembly - no visible screw holes\u003c\/li\u003e\n\u003cli\u003eGlued with Titebond III and internally braced\u003c\/li\u003e\n\u003cli\u003ePre-wired recessed satin-nickel binding post with OFC 10-gauge wire\u003c\/li\u003e\n\u003cli\u003eBuilt by hand in the USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eNet Volume\u003c\/td\u003e\n\u003ctd\u003e7.0 cu ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eTuning\u003c\/td\u003e\n\u003ctd\u003e30.0 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003ePort Area\u003c\/td\u003e\n\u003ctd\u003e101.25 sq in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003ePort Dimensions\u003c\/td\u003e\n\u003ctd\u003e18.0\" x 5.625\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eSub Cutout\u003c\/td\u003e\n\u003ctd\u003e16.69\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eDense, uniform, void-free triple refined MDF panel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eShips bare \/ unfinished - sanded and ready to finish your way\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eWiring\u003c\/td\u003e\n\u003ctd\u003ePre-wired metal binding post with 10ga OFC wire\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eDimensions (HxWxD)\u003c\/td\u003e\n\u003ctd\u003e20.0\" x 39.875\" x 25.125\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Sundown Audio","offers":[{"title":"D2","offer_id":66909597958189,"sku":null,"price":1367.53,"currency_code":"USD","in_stock":true},{"title":"D1","offer_id":66909597990957,"sku":null,"price":1367.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/Sundown_Audio_X_v3_18_Single_Bundle_3c14ffdd-d2e0-4cc0-bb16-f294d35e9b10.webp?v=1782369137"},{"product_id":"sundown-audio-x-v4-18-single-bundle","title":"Sundown Audio X v4 18 Single Bundle","description":"\u003cp\u003e\u003cstrong\u003eBundle Includes:\u003c\/strong\u003e Sundown Audio X-Series XV4 18\" 3000W RMS Subwoofer + Sundown Audio XV4 MDF 18\" Single Ported Subwoofer Enclosure\u003c\/p\u003e\u003cp\u003ePriced at 10% off the combined retail price of the subwoofer and enclosure bought separately. Select your impedance below.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eSundown Audio X-Series XV4 18\" 3000W RMS Subwoofer\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower\u003c\/strong\u003e — 3,000W RMS \/ 6,000W peak\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoice Coil\u003c\/strong\u003e — X v.4 coils, available Dual 1Ω or Dual 2Ω\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eXmax\u003c\/strong\u003e — 30mm for deep excursion\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor\u003c\/strong\u003e — Heavy-duty 9.25″ diameter\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eThis Listing Includes:\u003c\/strong\u003e (1) Sundown Audio X-Series XV4 18″ Subwoofer\u003c\/p\u003e\u003cp\u003eThe Sundown Xv4 18″ subwoofer delivers serious power and control, handling 3,000W RMS and 6,000W peak with high-grade X v.4 coils. A heavy-duty 9.25″ motor and large cone area (SD 113.41) move massive air for powerful low-frequency response, while 30mm of Xmax keeps deep bass clean. It works in sealed or ported enclosures with a recommended port tuning of 32Hz, giving you flexibility for SPL competition or everyday high-quality listening. Available in Dual 1Ω or Dual 2Ω, the Xv4 18″ is built for extreme durability and clean sound. In stock and shipping free from JS Ultimate Sounds — your authorized Sundown Audio dealer.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e18″ X v.4 Series subwoofer, 3,000W RMS \/ 6,000W peak\u003c\/li\u003e\n\u003cli\u003eDual 1-Ohm or Dual 2-Ohm voice coil options\u003c\/li\u003e\n\u003cli\u003eHeavy-duty motor with 9.25″ diameter\u003c\/li\u003e\n\u003cli\u003e30mm Xmax for deep bass response\u003c\/li\u003e\n\u003cli\u003eSealed or ported enclosure compatibility; recommended port tuning 32Hz\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eRMS Power\u003c\/td\u003e\n\u003ctd\u003e3,000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePeak Power\u003c\/td\u003e\n\u003ctd\u003e6,000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImpedance\u003c\/td\u003e\n\u003ctd\u003eDual 1Ω or Dual 2Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoice Coil\u003c\/td\u003e\n\u003ctd\u003eX v.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXmax\u003c\/td\u003e\n\u003ctd\u003e30mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor Diameter\u003c\/td\u003e\n\u003ctd\u003e9.25″\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCone Area (SD)\u003c\/td\u003e\n\u003ctd\u003e113.41\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended Port Tuning\u003c\/td\u003e\n\u003ctd\u003e32Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003chr\u003e\u003ch2\u003eSundown Audio XV4 MDF 18\" Single Ported Subwoofer Enclosure\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNet Volume\u003c\/strong\u003e - 7.0 cu ft\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTuning\u003c\/strong\u003e - 30.0 Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePort Area\u003c\/strong\u003e - 101.25 sq in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub Cutout\u003c\/strong\u003e - 16.69\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction\u003c\/strong\u003e - Dense, uniform, void-free triple refined MDF panel\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eThis Listing Includes:\u003c\/strong\u003e (1) Basshead Supply ported enclosure for the Sundown Audio XV4 MDF 18\" subwoofer\u003c\/p\u003e\u003cp\u003eThis enclosure is custom built specifically for the Sundown Audio XV4 MDF 18\" subwoofer. Basshead Supply's Performance Series enclosures are subwoofer-specific boxes engineered for strong, clean output, built with a refined assembly process that leaves no visible screw holes. Every box is glued with Titebond III and internally braced, then pre-wired with a recessed satin-nickel binding post and OFC 10-gauge wire - built by hand in the USA. Made to order (2-3 week lead time) and shipping from JS Ultimate Sounds, your Basshead Supply dealer.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDense, uniform, void-free triple refined MDF panel\u003c\/li\u003e\n\u003cli\u003eShips bare \/ unfinished - sanded and ready to finish your way\u003c\/li\u003e\n\u003cli\u003eRefined assembly - no visible screw holes\u003c\/li\u003e\n\u003cli\u003eGlued with Titebond III and internally braced\u003c\/li\u003e\n\u003cli\u003ePre-wired recessed satin-nickel binding post with OFC 10-gauge wire\u003c\/li\u003e\n\u003cli\u003eBuilt by hand in the USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eNet Volume\u003c\/td\u003e\n\u003ctd\u003e7.0 cu ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eTuning\u003c\/td\u003e\n\u003ctd\u003e30.0 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003ePort Area\u003c\/td\u003e\n\u003ctd\u003e101.25 sq in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003ePort Dimensions\u003c\/td\u003e\n\u003ctd\u003e18.0\" x 5.625\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eSub Cutout\u003c\/td\u003e\n\u003ctd\u003e16.69\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eDense, uniform, void-free triple refined MDF panel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eShips bare \/ unfinished - sanded and ready to finish your way\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eWiring\u003c\/td\u003e\n\u003ctd\u003ePre-wired metal binding post with 10ga OFC wire\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eDimensions (HxWxD)\u003c\/td\u003e\n\u003ctd\u003e20.0\" x 39.875\" x 25.125\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Sundown Audio","offers":[{"title":"D2","offer_id":66909598416941,"sku":null,"price":1457.53,"currency_code":"USD","in_stock":true},{"title":"D1","offer_id":66909598449709,"sku":null,"price":1457.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/Sundown_Audio_X_v4_18_Single_Bundle_89308e1f-2122-499f-b59b-cc76e0f6298d.webp?v=1782369143"},{"product_id":"sundown-audio-z-v6-18-single-bundle","title":"Sundown Audio Z v6 18 Single Bundle","description":"\u003cp\u003e\u003cstrong\u003eBundle Includes:\u003c\/strong\u003e Sundown Audio Z-Series ZV6 18\" 3250W Subwoofer Z v.6 + Sundown Audio ZV6 MDF 18\" Single Ported Subwoofer Enclosure\u003c\/p\u003e\u003cp\u003ePriced at 10% off the combined retail price of the subwoofer and enclosure bought separately. Select your impedance below.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eSundown Audio Z-Series ZV6 18\" 3250W Subwoofer Z v.6\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Handling\u003c\/strong\u003e — 3250 Watts RMS \/ 6500 Watts Peak\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImpedance\u003c\/strong\u003e — Dual 1 or Dual 2 ohm voice coils\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoice Coil\u003c\/strong\u003e — 3\" black aluminum, 8-layer flat-wire aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor\u003c\/strong\u003e — Quad-stacked 240mm (9.45\") structure, hyper-extended pole\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eXmax\u003c\/strong\u003e — 35mm one-way by 70% BL\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eThis Listing Includes:\u003c\/strong\u003e (1) Sundown Audio Z-Series ZV6 18\" Subwoofer\u003c\/p\u003e\n\u003cp\u003eThe Z v.6 is the second step in Sundown's ultra-high-excursion lineup and replaces the Z v.5 series. A patented custom-tooled frame mates to a quad-stacked 240mm (9.45\") motor with a 100mm (3.94\") magnet stack, a hyper-extended pole, and clearances allowing over 4\" peak-to-peak travel before mechanical bottom. The 3\" 8-layer flat-wire aluminum voice coil — shared with the NS v.5 series — drives extreme excursion, cooled by a high-velocity pole vent, a heavily vented magnetic gap, and machined channels around the pole piece. Built for the lowest bass extension possible in a small ported box while keeping distortion extremely low; rated 3250 watts RMS \/ 6500 watts peak with 35mm one-way Xmax. In stock and shipping free from JS Ultimate Sounds — your authorized Sundown Audio dealer.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e3\" 8-layer flat-wire aluminum voice coil on a thick aluminum former\u003c\/li\u003e\n\u003cli\u003eQuad-stacked 240mm motor with hyper-extended pole\u003c\/li\u003e\n\u003cli\u003eHigh-velocity pole vent and heavily vented magnetic gap\u003c\/li\u003e\n\u003cli\u003eMega-Roll v.2 surround and custom-tooled ultra-linear spider packs\u003c\/li\u003e\n\u003cli\u003eLarge aluminum Faraday (shorting) ring with stitched-on XL tinsel leads\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003ePower Handling (RMS)\u003c\/td\u003e\n\u003ctd\u003e3250 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Handling (Peak)\u003c\/td\u003e\n\u003ctd\u003e6500 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImpedance Options\u003c\/td\u003e\n\u003ctd\u003eDual 1 ohm (D1) \/ Dual 2 ohm (D2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoice Coil\u003c\/td\u003e\n\u003ctd\u003e3\" 8-layer flat-wire aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor\u003c\/td\u003e\n\u003ctd\u003eQuad-stacked 240mm (9.45\"), 100mm magnet stack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXmax\u003c\/td\u003e\n\u003ctd\u003e35mm one-way by 70% BL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurround\u003c\/td\u003e\n\u003ctd\u003eMega-Roll v.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003chr\u003e\u003ch2\u003eSundown Audio ZV6 MDF 18\" Single Ported Subwoofer Enclosure\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNet Volume\u003c\/strong\u003e - 7.0 cu ft\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTuning\u003c\/strong\u003e - 30.0 Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePort Area\u003c\/strong\u003e - 101.25 sq in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub Cutout\u003c\/strong\u003e - 16.69\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction\u003c\/strong\u003e - Dense, uniform, void-free triple refined MDF panel\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eThis Listing Includes:\u003c\/strong\u003e (1) Basshead Supply ported enclosure for the Sundown Audio ZV6 MDF 18\" subwoofer\u003c\/p\u003e\u003cp\u003eThis enclosure is custom built specifically for the Sundown Audio ZV6 MDF 18\" subwoofer. Basshead Supply's Performance Series enclosures are subwoofer-specific boxes engineered for strong, clean output, built with a refined assembly process that leaves no visible screw holes. Every box is glued with Titebond III and internally braced, then pre-wired with a recessed satin-nickel binding post and OFC 10-gauge wire - built by hand in the USA. Made to order (2-3 week lead time) and shipping from JS Ultimate Sounds, your Basshead Supply dealer.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDense, uniform, void-free triple refined MDF panel\u003c\/li\u003e\n\u003cli\u003eShips bare \/ unfinished - sanded and ready to finish your way\u003c\/li\u003e\n\u003cli\u003eRefined assembly - no visible screw holes\u003c\/li\u003e\n\u003cli\u003eGlued with Titebond III and internally braced\u003c\/li\u003e\n\u003cli\u003ePre-wired recessed satin-nickel binding post with OFC 10-gauge wire\u003c\/li\u003e\n\u003cli\u003eBuilt by hand in the USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eNet Volume\u003c\/td\u003e\n\u003ctd\u003e7.0 cu ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eTuning\u003c\/td\u003e\n\u003ctd\u003e30.0 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003ePort Area\u003c\/td\u003e\n\u003ctd\u003e101.25 sq in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003ePort Dimensions\u003c\/td\u003e\n\u003ctd\u003e18.0\" x 5.625\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eSub Cutout\u003c\/td\u003e\n\u003ctd\u003e16.69\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eDense, uniform, void-free triple refined MDF panel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eShips bare \/ unfinished - sanded and ready to finish your way\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eWiring\u003c\/td\u003e\n\u003ctd\u003ePre-wired metal binding post with 10ga OFC wire\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:35%;\"\u003eDimensions (HxWxD)\u003c\/td\u003e\n\u003ctd\u003e20.0\" x 39.875\" x 25.125\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Sundown Audio","offers":[{"title":"D2","offer_id":66909598842925,"sku":null,"price":1637.53,"currency_code":"USD","in_stock":true},{"title":"D1","offer_id":66909598875693,"sku":null,"price":1637.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/Sundown_Audio_Z_v6_18_Single_Bundle_cfea84ca-875d-45a1-9e3c-a9f5c2fa7034.webp?v=1782369149"}],"url":"https:\/\/www.jsultimatesounds.com\/collections\/bundles-18-inch.oembed","provider":"JS Ultimate Sounds","version":"1.0","type":"link"}