{"title":"Sundown Audio Horizon","description":"\u003cp\u003eExplore the \u003cstrong\u003eSundown Audio Horizon\u003c\/strong\u003e lineup at JS Ultimate Sounds. As an authorized Sundown Audio dealer, we stock 10+ Sundown Audio Horizon products with fast, free shipping. Find the exact Sundown Audio Horizon model for your build and get it delivered to your door.\u003c\/p\u003e","products":[{"product_id":"sundown-audio-horizon-hzs-12-subwoofer-600w-rms","title":"Sundown Audio Horizon HZS 12\" Subwoofer 600W RMS","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRMS Power\u003c\/strong\u003e — 600W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoice Coil\u003c\/strong\u003e — 2.5″ black aluminum former, Dual 4Ω\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesign\u003c\/strong\u003e — Shallow-mount, compact profile for space-restricted enclosures\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCooling\u003c\/strong\u003e — Vented motor gap and solid pole piece\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eThis Listing Includes:\u003c\/strong\u003e (1) Sundown Audio Horizon HZS 12″ Subwoofer\u003c\/p\u003e\u003cp\u003eThe Sundown Audio HZS is a shallow-mount subwoofer engineered to bring clean, powerful bass to space-limited installs — behind a truck seat, under a rear deck, or in a stealth build. Rated at 600 watts RMS, it features a 2.5″ black aluminum voice coil in Dual 4Ω, a high-roll surround, a progressive spider, and a vented motor design that keeps things cool when the music gets loud. A bolt-through motor assembly adds mechanical strength, and stitched mini-XL tinsel leads handle daily abuse. It thrives in ported enclosures for optimal output and is sealed-compatible as well. Authorized Sundown Audio dealer at JS Ultimate Sounds. Free shipping on orders $99+.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e600W RMS shallow-mount design for restricted enclosures\u003c\/li\u003e\n\u003cli\u003e2.5″ black aluminum voice coil former, Dual 4Ω\u003c\/li\u003e\n\u003cli\u003eVented motor gap and solid pole piece for cooling\u003c\/li\u003e\n\u003cli\u003eHigh-roll surround and progressive spider\u003c\/li\u003e\n\u003cli\u003eBolt-through motor assembly with stitched mini-XL tinsel leads\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\u003e600W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoice Coil\u003c\/td\u003e\n\u003ctd\u003e2.5″ black aluminum former, Dual 4Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCooling\u003c\/td\u003e\n\u003ctd\u003eVented motor gap and solid pole piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuspension\u003c\/td\u003e\n\u003ctd\u003eHigh-roll surround, progressive spider\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLead Wires\u003c\/td\u003e\n\u003ctd\u003eStitched mini-XL tinsel leads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest Use\u003c\/td\u003e\n\u003ctd\u003ePorted (optimal output); sealed compatible\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Sundown Audio","offers":[{"title":"Default Title","offer_id":66819671687213,"sku":"SW-HZS12D4","price":259.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/HZS10_Cover_55d5e468-081a-41de-a7a9-f488f395d162.png?v=1780684282"},{"product_id":"sundown-audio-horizon-hz-12-subwoofer-750w-rms","title":"Sundown Audio Horizon HZ 12\" Subwoofer 750W RMS","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRMS Power\u003c\/strong\u003e — 750W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoice Coil\u003c\/strong\u003e — 2.5″, 4-layer high-temp copper, Dual 4Ω\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eXmax\u003c\/strong\u003e — Class-leading 14mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrame\u003c\/strong\u003e — Heavy-duty cast aluminum basket\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eThis Listing Includes:\u003c\/strong\u003e (1) Sundown Audio Horizon HZ 12″ Subwoofer\u003c\/p\u003e\u003cp\u003eThe Sundown Audio Horizon HZ 12″ is rated at 750 watts RMS and built around a 2.5″ voice coil wound with high-temp 4-layer copper wire in Dual 4Ω. A class-leading 14mm Xmax paired with a high-roll surround and progressive spider delivers smooth, controlled excursion, while a heavy-duty cast aluminum basket, vented motor gap and pole piece, stitched mini-XL tinsel leads, and a bolted spider pack keep it cool and durable under hard use. It’s designed for ported enclosures for maximum efficiency and output. Authorized Sundown Audio dealer at JS Ultimate Sounds. Free shipping on orders $99+.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e750W RMS with 2.5″ voice coil\u003c\/li\u003e\n\u003cli\u003eHigh-temp 4-layer copper voice coil wire, Dual 4Ω\u003c\/li\u003e\n\u003cli\u003eClass-leading 14mm Xmax\u003c\/li\u003e\n\u003cli\u003eHeavy-duty cast aluminum basket with vented motor gap and pole piece\u003c\/li\u003e\n\u003cli\u003eStitched mini-XL tinsel leads and bolted spider pack\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\u003e750W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoice Coil\u003c\/td\u003e\n\u003ctd\u003e2.5″, 4-layer high-temp copper, Dual 4Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXmax\u003c\/td\u003e\n\u003ctd\u003e14mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrame\u003c\/td\u003e\n\u003ctd\u003eHeavy-duty cast aluminum basket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCooling\u003c\/td\u003e\n\u003ctd\u003eVented motor gap and pole piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuspension\u003c\/td\u003e\n\u003ctd\u003eHigh-roll surround, progressive spider\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended Enclosure\u003c\/td\u003e\n\u003ctd\u003ePorted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Sundown Audio","offers":[{"title":"Default Title","offer_id":66819671785517,"sku":"SW-HZ12D4","price":319.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/HZ12_Cover_26e093a9-e29f-4123-a244-ffd5b1acb3ed.png?v=1780684283"},{"product_id":"sundown-audio-horizon-hz-10-subwoofer-750w-rms","title":"Sundown Audio Horizon HZ 10\" Subwoofer 750W RMS","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRMS Power\u003c\/strong\u003e — 750W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoice Coil\u003c\/strong\u003e — 2.5″, 4-layer high-temp copper, Dual 4Ω\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eXmax\u003c\/strong\u003e — Class-leading 14mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrame\u003c\/strong\u003e — Heavy-duty cast aluminum basket\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eThis Listing Includes:\u003c\/strong\u003e (1) Sundown Audio Horizon HZ 10″ Subwoofer\u003c\/p\u003e\u003cp\u003eThe Sundown Audio Horizon HZ 10″ is rated at 750 watts RMS and built around a 2.5″ voice coil wound with high-temp 4-layer copper wire in Dual 4Ω. A class-leading 14mm Xmax paired with a high-roll surround and progressive spider delivers smooth, controlled excursion, while a heavy-duty cast aluminum basket, vented motor gap and pole piece, stitched mini-XL tinsel leads, and a bolted spider pack keep it cool and durable under hard use. It’s designed for ported enclosures for maximum efficiency and output. Authorized Sundown Audio dealer at JS Ultimate Sounds. Free shipping on orders $99+.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e750W RMS with 2.5″ voice coil\u003c\/li\u003e\n\u003cli\u003eHigh-temp 4-layer copper voice coil wire, Dual 4Ω\u003c\/li\u003e\n\u003cli\u003eClass-leading 14mm Xmax\u003c\/li\u003e\n\u003cli\u003eHeavy-duty cast aluminum basket with vented motor gap and pole piece\u003c\/li\u003e\n\u003cli\u003eStitched mini-XL tinsel leads and bolted spider pack\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\u003e750W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoice Coil\u003c\/td\u003e\n\u003ctd\u003e2.5″, 4-layer high-temp copper, Dual 4Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXmax\u003c\/td\u003e\n\u003ctd\u003e14mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrame\u003c\/td\u003e\n\u003ctd\u003eHeavy-duty cast aluminum basket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCooling\u003c\/td\u003e\n\u003ctd\u003eVented motor gap and pole piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuspension\u003c\/td\u003e\n\u003ctd\u003eHigh-roll surround, progressive spider\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended Enclosure\u003c\/td\u003e\n\u003ctd\u003ePorted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Sundown Audio","offers":[{"title":"Default Title","offer_id":66819673686061,"sku":"SW-HZ10D4","price":299.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/HZ10_Cover_361f9828-1322-4076-b170-2090997c483f.png?v=1780684283"},{"product_id":"sundown-audio-horizon-hz-8-subwoofer-500w-rms","title":"Sundown Audio Horizon HZ 8\" Subwoofer 500W RMS","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRMS Power\u003c\/strong\u003e — 500W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoice Coil\u003c\/strong\u003e — 2″, 4-layer high-temp copper, Dual 4Ω\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eXmax\u003c\/strong\u003e — Class-leading 14mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrame\u003c\/strong\u003e — Heavy-duty cast aluminum basket\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eThis Listing Includes:\u003c\/strong\u003e (1) Sundown Audio Horizon HZ 8″ Subwoofer\u003c\/p\u003e\u003cp\u003eThe Sundown Audio Horizon HZ 8″ is rated at 500 watts RMS and built around a 2″ voice coil wound with high-temp 4-layer copper wire in Dual 4Ω. A class-leading 14mm Xmax paired with a high-roll surround and progressive spider delivers smooth, controlled excursion, while a heavy-duty cast aluminum basket, vented motor gap and pole piece, stitched mini-XL tinsel leads, and a bolted spider pack keep it cool and durable under hard use. It’s designed for ported enclosures for maximum efficiency and output. Authorized Sundown Audio dealer at JS Ultimate Sounds. Free shipping on orders $99+.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e500W RMS with 2″ voice coil\u003c\/li\u003e\n\u003cli\u003eHigh-temp 4-layer copper voice coil wire, Dual 4Ω\u003c\/li\u003e\n\u003cli\u003eClass-leading 14mm Xmax\u003c\/li\u003e\n\u003cli\u003eHeavy-duty cast aluminum basket with vented motor gap and pole piece\u003c\/li\u003e\n\u003cli\u003eStitched mini-XL tinsel leads and bolted spider pack\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\u003e500W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoice Coil\u003c\/td\u003e\n\u003ctd\u003e2″, 4-layer high-temp copper, Dual 4Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXmax\u003c\/td\u003e\n\u003ctd\u003e14mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrame\u003c\/td\u003e\n\u003ctd\u003eHeavy-duty cast aluminum basket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCooling\u003c\/td\u003e\n\u003ctd\u003eVented motor gap and pole piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuspension\u003c\/td\u003e\n\u003ctd\u003eHigh-roll surround, progressive spider\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended Enclosure\u003c\/td\u003e\n\u003ctd\u003ePorted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Sundown Audio","offers":[{"title":"Default Title","offer_id":66819675422765,"sku":"SW-HZ8D4","price":239.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/sundown-audio-horizon-hz-8-subwoofer-500w-rms-w_5185dd29-f11c-4795-8d63-4dee145bd79b.jpg?v=1782679449"},{"product_id":"sundown-audio-horizon-hz-900-5-900-watt-5-channel-amplifier","title":"Sundown Audio Horizon HZ-900.5 900 Watt 5-Channel Amplifier","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRMS Power (CH1-4)\u003c\/strong\u003e — 100W x4 @ 4Ω \/ 150W x4 @ 2Ω\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRMS Power (CH5 Sub)\u003c\/strong\u003e — 200W @ 4Ω \/ 500W @ 2Ω\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass\u003c\/strong\u003e — 5-channel full-system amplifier (mids\/highs + dedicated sub)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilters\u003c\/strong\u003e — HPF on CH1-4, LPF and subsonic on CH5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection\u003c\/strong\u003e — Sundown 4-way protection with DC Sense and high-level input\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eThis Listing Includes:\u003c\/strong\u003e (1) Sundown Audio Horizon HZ-900.5 5-Channel Amplifier\u003c\/p\u003e\n\u003cp\u003eThe Horizon HZ-900.5 is Sundown's all-in-one solution for full-system amplification, with four channels for mids and highs and a separate subwoofer channel. CH1-4 deliver 100W x4 @ 4Ω or 150W x4 @ 2Ω, while CH5 pushes 200W @ 4Ω or 500W @ 2Ω. Independent crossovers give you a high-pass filter (27Hz–250Hz) on CH1-4 plus low-pass (50Hz–250Hz) and subsonic (10Hz–50Hz) filtering on CH5. DC Sense, high-level input capability, and 4-way protection make it ideal for daily drivers and stealth builds where space matters. Authorized Sundown 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\u003eFour full-range channels plus a dedicated subwoofer channel\u003c\/li\u003e\n\u003cli\u003eHigh-pass filter on CH1-4 (27Hz–250Hz)\u003c\/li\u003e\n\u003cli\u003eLow-pass and subsonic filters on CH5\u003c\/li\u003e\n\u003cli\u003eDC Sense and high-level input for factory integration\u003c\/li\u003e\n\u003cli\u003eSundown 4-way protection circuit\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 CH1-4\u003c\/td\u003e\n\u003ctd\u003e100W x4 @ 4Ω \/ 150W x4 @ 2Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRMS Power CH5 (Sub)\u003c\/td\u003e\n\u003ctd\u003e200W @ 4Ω \/ 500W @ 2Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHigh Pass Filter (CH1-4)\u003c\/td\u003e\n\u003ctd\u003e27Hz – 250Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLow Pass Filter (CH5)\u003c\/td\u003e\n\u003ctd\u003e50Hz – 250Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSubsonic Filter (CH5)\u003c\/td\u003e\n\u003ctd\u003e10Hz – 50Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Sensitivity\u003c\/td\u003e\n\u003ctd\u003e6V Max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal-to-Noise Ratio\u003c\/td\u003e\n\u003ctd\u003e95dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Rating\u003c\/td\u003e\n\u003ctd\u003e100A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e11.25\" x 4.63\" x 2.2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e4.12 lbs (1.87 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Sundown Audio","offers":[{"title":"Default Title","offer_id":66819678076973,"sku":"A-HZ900.5","price":449.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/HZ9005A-cover.png?v=1780543913"},{"product_id":"sundown-audio-horizon-hz-100-4-4-channel-amplifier-100w-rms","title":"Sundown Audio Horizon HZ-100.4 4-Channel Amplifier 100W RMS","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRMS Power\u003c\/strong\u003e — 100W x4 @ 4Ω \/ 170W x4 @ 2Ω\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass\u003c\/strong\u003e — 4-channel full-range amplifier\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrossovers\u003c\/strong\u003e — Adjustable HPF and LPF (27Hz–250Hz) on all four channels\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInputs\u003c\/strong\u003e — High-level inputs with DC Sense for factory integration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection\u003c\/strong\u003e — Sundown 4-way protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eThis Listing Includes:\u003c\/strong\u003e (1) Sundown Audio Horizon HZ-100.4 4-Channel Amplifier\u003c\/p\u003e\n\u003cp\u003eThe Horizon HZ-100.4 delivers 100 watts RMS per channel at 4 ohms, or 170W x4 at 2 ohms, for powering component speakers, pro audio drivers, or full-range coaxials. Fully adjustable HPF and LPF crossovers (27Hz–250Hz) let you run active or passive setups, bridge channels, or mix configurations. High-level inputs, DC Sense, and 4-way protection make it at home in factory integration and custom builds alike. Input sensitivity is up to 6V with a 95dB signal-to-noise ratio and a 60A fuse rating. Authorized Sundown 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\u003e100W x4 @ 4Ω, 170W x4 @ 2Ω\u003c\/li\u003e\n\u003cli\u003eAdjustable high-pass and low-pass filters on all channels\u003c\/li\u003e\n\u003cli\u003eBridgeable for active or passive setups\u003c\/li\u003e\n\u003cli\u003eHigh-level inputs and DC Sense turn-on\u003c\/li\u003e\n\u003cli\u003eSundown 4-way protection circuit\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 (4Ω)\u003c\/td\u003e\n\u003ctd\u003e100W x4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRMS Power (2Ω)\u003c\/td\u003e\n\u003ctd\u003e170W x4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHigh Pass Filter (CH1-4)\u003c\/td\u003e\n\u003ctd\u003e27Hz – 250Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLow Pass Filter (CH1-4)\u003c\/td\u003e\n\u003ctd\u003e27Hz – 250Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Sensitivity\u003c\/td\u003e\n\u003ctd\u003eUp to 6V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal-to-Noise Ratio\u003c\/td\u003e\n\u003ctd\u003e95dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Rating\u003c\/td\u003e\n\u003ctd\u003e60A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e8.63\" x 4.63\" x 2.2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e2.93 lbs (1.33 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Sundown Audio","offers":[{"title":"Default Title","offer_id":66819680436269,"sku":"A-HZ100.4","price":289.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/HZ1004A-cover.png?v=1780543930"},{"product_id":"sundown-audio-horizon-hz-80-4-4-channel-amplifier-80w-rms","title":"Sundown Audio Horizon HZ-80.4 4-Channel Amplifier 80W RMS","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRMS Power\u003c\/strong\u003e — 80W x4 @ 4Ω \/ 130W x4 @ 2Ω\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass\u003c\/strong\u003e — 4-channel full-range amplifier\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrossovers\u003c\/strong\u003e — Adjustable HPF and LPF (27Hz–250Hz) on all four channels\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInputs\u003c\/strong\u003e — High-level input capability for factory integration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection\u003c\/strong\u003e — Bridgeable with full-range passthrough option\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eThis Listing Includes:\u003c\/strong\u003e (1) Sundown Audio Horizon HZ-80.4 4-Channel Amplifier\u003c\/p\u003e\n\u003cp\u003eThe Horizon HZ-80.4 adds clean, controlled power across your mids and highs with 80 watts RMS x4 at 4 ohms, or 130W x4 at 2 ohms. Its compact chassis fits nearly anywhere, and it includes adjustable high and low pass filters (27Hz–250Hz) on all four channels, a full-range passthrough option, and high-level input capability for factory integration. Run it passive or active, or bridge it for bigger loads. Input sensitivity is up to 6V with a 95dB signal-to-noise ratio and a 50A fuse rating. Authorized Sundown 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\u003e80W x4 @ 4Ω, 130W x4 @ 2Ω\u003c\/li\u003e\n\u003cli\u003eAdjustable high and low pass filters on all four channels\u003c\/li\u003e\n\u003cli\u003eFull-range passthrough option\u003c\/li\u003e\n\u003cli\u003eHigh-level input capability\u003c\/li\u003e\n\u003cli\u003eBridgeable for larger loads\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 (4Ω)\u003c\/td\u003e\n\u003ctd\u003e80W x4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRMS Power (2Ω)\u003c\/td\u003e\n\u003ctd\u003e130W x4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHigh Pass Filter (CH1-4)\u003c\/td\u003e\n\u003ctd\u003e27Hz – 250Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLow Pass Filter (CH1-4)\u003c\/td\u003e\n\u003ctd\u003e27Hz – 250Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Sensitivity\u003c\/td\u003e\n\u003ctd\u003eUp to 6V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal-to-Noise Ratio\u003c\/td\u003e\n\u003ctd\u003e95dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Rating\u003c\/td\u003e\n\u003ctd\u003e50A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e7.4\" x 4.63\" x 2.2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e2.54 lbs (1.15 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Sundown Audio","offers":[{"title":"Default Title","offer_id":66819681452077,"sku":"A-HZ80.4","price":259.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/HZ804C-cover_0e0026b7-53f1-4400-a2e2-f6e41bd03622.png?v=1780684285"},{"product_id":"sundown-audio-horizon-hz-1500-1500-watt-rms-monoblock-amplifier","title":"Sundown Audio Horizon HZ-1500 1500 Watt RMS Monoblock Amplifier","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRMS Power\u003c\/strong\u003e — 1,500W @ 1Ω, 800W @ 2Ω, 450W @ 4Ω\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass\u003c\/strong\u003e — Monoblock subwoofer amplifier\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilters\u003c\/strong\u003e — Low pass (50Hz–250Hz) and subsonic (10Hz–50Hz)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInputs\u003c\/strong\u003e — High-level inputs with DC Sense\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded\u003c\/strong\u003e — Wired remote bass control\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eThis Listing Includes:\u003c\/strong\u003e (1) Sundown Audio Horizon HZ-1500 Monoblock Amplifier\u003c\/p\u003e\n\u003cp\u003eThe Horizon HZ-1500 is the top mono amp in the Horizon lineup, delivering up to 1,500 watts RMS at 1 ohm, 800W at 2 ohms, and 450W at 4 ohms. It features a 4-way protection system, DC Sense, and high-level inputs for both factory and aftermarket installs. Tuning is handled by the onboard low pass filter (50Hz–250Hz), subsonic filter (10Hz–50Hz), and included wired remote bass knob. Input sensitivity is 6V max with a 95dB signal-to-noise ratio and a 140A fuse rating. Authorized Sundown 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\u003e1,500W RMS at 1 ohm\u003c\/li\u003e\n\u003cli\u003e4-way protection system\u003c\/li\u003e\n\u003cli\u003eDC Sense and high-level inputs\u003c\/li\u003e\n\u003cli\u003eOnboard low pass and subsonic filters\u003c\/li\u003e\n\u003cli\u003eIncluded wired remote bass control\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 (1Ω)\u003c\/td\u003e\n\u003ctd\u003e1500W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRMS Power (2Ω)\u003c\/td\u003e\n\u003ctd\u003e800W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRMS Power (4Ω)\u003c\/td\u003e\n\u003ctd\u003e450W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLow Pass Filter\u003c\/td\u003e\n\u003ctd\u003e50Hz – 250Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSubsonic Filter\u003c\/td\u003e\n\u003ctd\u003e10Hz – 50Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Sensitivity\u003c\/td\u003e\n\u003ctd\u003e6V Max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal-to-Noise Ratio\u003c\/td\u003e\n\u003ctd\u003e95dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Rating\u003c\/td\u003e\n\u003ctd\u003e140A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e11.25\" x 4.63\" x 2.2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e4.23 lbs (1.92 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Sundown Audio","offers":[{"title":"Default Title","offer_id":66819682500653,"sku":"A-HZ1500","price":359.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/HZ1500A-cover.png?v=1780543956"},{"product_id":"sundown-audio-horizon-hz-1000-1000-watt-rms-monoblock-amplifier","title":"Sundown Audio Horizon HZ-1000 1000 Watt RMS Monoblock Amplifier","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRMS Power\u003c\/strong\u003e — 1,000W @ 1Ω, 700W @ 2Ω, 350W @ 4Ω\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass\u003c\/strong\u003e — Class D monoblock amplifier\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilters\u003c\/strong\u003e — Variable low pass (50Hz–250Hz) and subsonic (10Hz–50Hz)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInputs\u003c\/strong\u003e — High-level input compatibility with DC Sense\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded\u003c\/strong\u003e — Wired remote bass knob\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eThis Listing Includes:\u003c\/strong\u003e (1) Sundown Audio Horizon HZ-1000 Monoblock Amplifier\u003c\/p\u003e\n\u003cp\u003eThe Horizon HZ-1000 is a mid-tier Class D mono amplifier delivering 1,000 watts RMS at 1 ohm, 700W at 2 ohms, and 350W at 4 ohms. It includes high-level input compatibility, DC Sense for factory integration, and variable subsonic and low pass filters to keep your low-end controlled. The 4-way protection circuit monitors heat, voltage, shorts, and offset, and the included remote bass knob allows real-time adjustment. Input sensitivity is 6V max with a 95dB signal-to-noise ratio and a 100A fuse rating. Authorized Sundown 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\u003e1,000W RMS at 1 ohm in a compact Class D platform\u003c\/li\u003e\n\u003cli\u003eVariable subsonic and low pass filters\u003c\/li\u003e\n\u003cli\u003eHigh-level input compatibility and DC Sense\u003c\/li\u003e\n\u003cli\u003e4-way protection circuit (heat, voltage, shorts, offset)\u003c\/li\u003e\n\u003cli\u003eIncluded wired remote bass knob\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 (1Ω)\u003c\/td\u003e\n\u003ctd\u003e1000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRMS Power (2Ω)\u003c\/td\u003e\n\u003ctd\u003e700W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRMS Power (4Ω)\u003c\/td\u003e\n\u003ctd\u003e350W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLow Pass Filter\u003c\/td\u003e\n\u003ctd\u003e50Hz – 250Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSubsonic Filter\u003c\/td\u003e\n\u003ctd\u003e10Hz – 50Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Sensitivity\u003c\/td\u003e\n\u003ctd\u003e6V Max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal-to-Noise Ratio\u003c\/td\u003e\n\u003ctd\u003e95dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Rating\u003c\/td\u003e\n\u003ctd\u003e100A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e9.75\" x 4.63\" x 2.2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e3.42 lbs (1.55 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Sundown Audio","offers":[{"title":"Default Title","offer_id":66819684007981,"sku":"A-HZ1000","price":289.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/HZ1000A-cover.png?v=1780543965"},{"product_id":"sundown-audio-horizon-hz-600-600-watt-rms-monoblock-amplifier","title":"Sundown Audio Horizon HZ-600 600 Watt RMS Monoblock Amplifier","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRMS Power\u003c\/strong\u003e — 600W @ 1Ω, 450W @ 2Ω, 250W @ 4Ω\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass\u003c\/strong\u003e — Class D monoblock amplifier\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilters\u003c\/strong\u003e — 12dB\/oct low pass (50Hz–250Hz) and subsonic (10Hz–50Hz)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInputs\u003c\/strong\u003e — High-level input capability with DC Sense turn-on\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded\u003c\/strong\u003e — Wired remote bass knob\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eThis Listing Includes:\u003c\/strong\u003e (1) Sundown Audio Horizon HZ-600 Monoblock Amplifier\u003c\/p\u003e\n\u003cp\u003eThe Horizon HZ-600 is a compact Class D monoblock that pushes up to 600 watts RMS at 1 ohm, 450W at 2 ohms, and 250W at 4 ohms. It features high-level input capability and DC Sense turn-on for factory or aftermarket installs where space is tight. A 12dB\/octave low pass filter (50Hz–250Hz) and subsonic filter (10Hz–50Hz) give precise frequency control, while the 4-way protection circuit guards against voltage issues, shorts, thermal overload, and DC offset. It operates from 10.5V to 16.5V with a 60A fuse rating and includes a wired remote bass knob. Authorized Sundown 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\u003e600W RMS at 1 ohm in a compact chassis\u003c\/li\u003e\n\u003cli\u003e12dB\/octave low pass and subsonic filters\u003c\/li\u003e\n\u003cli\u003eHigh-level input capability and DC Sense turn-on\u003c\/li\u003e\n\u003cli\u003e4-way protection circuit\u003c\/li\u003e\n\u003cli\u003eIncluded wired remote bass knob\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 (1Ω)\u003c\/td\u003e\n\u003ctd\u003e600W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRMS Power (2Ω)\u003c\/td\u003e\n\u003ctd\u003e450W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRMS Power (4Ω)\u003c\/td\u003e\n\u003ctd\u003e250W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLow Pass Filter\u003c\/td\u003e\n\u003ctd\u003e50Hz – 250Hz (12dB\/Oct)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSubsonic Filter\u003c\/td\u003e\n\u003ctd\u003e10Hz – 50Hz (12dB\/Oct)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Sensitivity\u003c\/td\u003e\n\u003ctd\u003eUp to 6V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal-to-Noise Ratio\u003c\/td\u003e\n\u003ctd\u003e95dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e10.5V – 16.5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Rating\u003c\/td\u003e\n\u003ctd\u003e60A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e9\" x 4.63\" x 2.2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e2.78 lbs (1.26 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Sundown Audio","offers":[{"title":"Default Title","offer_id":66819685154861,"sku":"A-HZ600","price":239.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/HZ600A-cover.png?v=1780543974"}],"url":"https:\/\/www.jsultimatesounds.com\/collections\/sundown-audio-horizon.oembed","provider":"JS Ultimate Sounds","version":"1.0","type":"link"}