{"title":"Sundown Audio SDX","description":"\u003cp\u003eExplore the \u003cstrong\u003eSundown Audio SDX\u003c\/strong\u003e lineup at JS Ultimate Sounds. As an authorized Sundown Audio dealer, we stock 6+ Sundown Audio SDX products with fast, free shipping. Find the exact Sundown Audio SDX model for your build and get it delivered to your door.\u003c\/p\u003e","products":[{"product_id":"sundown-audio-sdx-200-2-2-channel-weatherproof-amplifier","title":"Sundown Audio SDX-200.2 2-Channel Weatherproof Amplifier","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower\u003c\/strong\u003e — 200W x 2 @ 4Ω, 280W x 2 @ 2Ω, 560W x 1 @ 4Ω bridged\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass\u003c\/strong\u003e — Class-D, 2-channel, water-resistant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilters\u003c\/strong\u003e — Variable 12dB high\/low-pass (20Hz–500Hz), bass boost @ 50Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuild\u003c\/strong\u003e — Heavy cast aluminum heat sink, removable control cover\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection\u003c\/strong\u003e — Thermal, voltage, speaker short, DC-offset\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eThis Listing Includes:\u003c\/strong\u003e (1) Sundown Audio SDX-200.2 2-Channel Weatherproof Amplifier\u003c\/p\u003e\n\u003cp\u003eThe water-resistant SDX-200.2 is a compact Class-D amplifier built for cars, UTVs, and open-air vehicles, delivering 200 watts x 2 at 4 ohms, 280 watts x 2 at 2 ohms, or 560 watts x 1 bridged at 4 ohms. Variable 12dB high and low-pass filters (20Hz–500Hz) and a variable 12dB bass boost at 50Hz sit beneath a sealed, removable control cover, and DC auto-sensing turn-on simplifies installation. A robust cast aluminum casing provides superior heat dissipation and shields the electronics from the elements, while thermal, voltage, speaker-short, and DC-offset circuitry protects the amp. To access audio settings, unscrew the badge with an allen key. 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\u003eWater-resistant Class-D design for powersports and daily drivers\u003c\/li\u003e\n\u003cli\u003eVariable 12dB high\/low-pass filters: 20Hz–500Hz\u003c\/li\u003e\n\u003cli\u003eVariable 12dB bass boost @ 50Hz\u003c\/li\u003e\n\u003cli\u003eDC auto-sensing turn-on with removable audio control cover\u003c\/li\u003e\n\u003cli\u003eHeavy cast aluminum heat sink with optional wired remote\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 @ 4Ω\u003c\/td\u003e\n\u003ctd\u003e200W x 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRMS @ 2Ω\u003c\/td\u003e\n\u003ctd\u003e280W x 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRMS @ 4Ω Bridged\u003c\/td\u003e\n\u003ctd\u003e560W x 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClass\u003c\/td\u003e\n\u003ctd\u003eD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHigh\/Low-Pass Filters\u003c\/td\u003e\n\u003ctd\u003e20Hz–500Hz (12dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBass Boost\u003c\/td\u003e\n\u003ctd\u003e12dB @ 50Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeatherproofing\u003c\/td\u003e\n\u003ctd\u003eWater resistant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection\u003c\/td\u003e\n\u003ctd\u003eThermal, voltage, speaker short, DC-offset\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Sundown Audio","offers":[{"title":"Default Title","offer_id":66820129652781,"sku":"A-SDX2002","price":299.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/sundown-audio-sdx-2002-2-channel-200x2-car-audio-amplifieramp-380981.png?v=1780545784"},{"product_id":"sundown-audio-sdx-90-2-2-channel-weatherproof-amplifier","title":"Sundown Audio SDX-90.2 2-Channel Weatherproof Amplifier","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower\u003c\/strong\u003e — 175W x 1 @ 4Ω, 300W x 1 @ 2Ω, 400W x 1 @ 1Ω\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass\u003c\/strong\u003e — Class-D, water-resistant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilters\u003c\/strong\u003e — Variable 12dB low-pass (50Hz–250Hz), variable bass boost\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuild\u003c\/strong\u003e — Heavy cast aluminum heat sink, removable control cover\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection\u003c\/strong\u003e — Thermal, voltage, speaker short, DC-offset\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eThis Listing Includes:\u003c\/strong\u003e (1) Sundown Audio SDX-90.2 2-Channel Weatherproof Amplifier\u003c\/p\u003e\n\u003cp\u003eThe water-resistant SDX-90.2 is a compact Class-D amplifier built for cars, UTVs, and open-air vehicles, delivering 175 watts at 4 ohms, 300 watts at 2 ohms, or 400 watts at 1 ohm. A variable 12dB low-pass filter (50Hz–250Hz) and variable 12dB bass boost sit beneath a sealed, removable control cover, and DC auto-sensing turn-on simplifies installation. A robust cast aluminum casing provides superior heat dissipation and shields the electronics from the elements, while thermal, voltage, speaker-short, and DC-offset circuitry protects the amp. A wired remote control is included; to access audio settings, unscrew the badge with an allen key. 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\u003eWater-resistant Class-D design for powersports and daily drivers\u003c\/li\u003e\n\u003cli\u003eVariable 12dB low-pass filter: 50Hz–250Hz\u003c\/li\u003e\n\u003cli\u003eVariable 12dB bass boost\u003c\/li\u003e\n\u003cli\u003eDC auto-sensing turn-on with removable audio control cover\u003c\/li\u003e\n\u003cli\u003eHeavy cast aluminum heat sink with included wired remote\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 @ 4Ω\u003c\/td\u003e\n\u003ctd\u003e175W x 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRMS @ 2Ω\u003c\/td\u003e\n\u003ctd\u003e300W x 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRMS @ 1Ω\u003c\/td\u003e\n\u003ctd\u003e400W x 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClass\u003c\/td\u003e\n\u003ctd\u003eD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLow-Pass Filter\u003c\/td\u003e\n\u003ctd\u003e50Hz–250Hz (12dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBass Boost\u003c\/td\u003e\n\u003ctd\u003e12dB, variable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeatherproofing\u003c\/td\u003e\n\u003ctd\u003eWater resistant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection\u003c\/td\u003e\n\u003ctd\u003eThermal, voltage, speaker short, DC-offset\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Sundown Audio","offers":[{"title":"Default Title","offer_id":66820134862893,"sku":"A-SDX902","price":189.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/sundown-audio-sdx-902-2-channel-90x2-car-audio-amplifieramp-588124.png?v=1780545790"},{"product_id":"sundown-audio-sdx-100-4-4-channel-weatherproof-amplifier","title":"Sundown Audio SDX-100.4 4-Channel Weatherproof Amplifier","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower\u003c\/strong\u003e — 100W x 4 @ 4Ω, 135W x 4 @ 2Ω, 270W x 2 @ 4Ω bridged\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass\u003c\/strong\u003e — Class-D, 4-channel, water-resistant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilters\u003c\/strong\u003e — Variable 12dB HPF\/LPF with x1\/x20 multiplier, bass boost @ 50Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuild\u003c\/strong\u003e — Heavy cast aluminum heat sink, removable control cover\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection\u003c\/strong\u003e — Thermal, voltage, speaker short, DC-offset\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eThis Listing Includes:\u003c\/strong\u003e (1) Sundown Audio SDX-100.4 4-Channel Weatherproof Amplifier\u003c\/p\u003e\n\u003cp\u003eThe water-resistant SDX-100.4 is a compact Class-D amplifier built for cars, UTVs, and open-air vehicles, delivering 100 watts x 4 at 4 ohms, 135 watts x 4 at 2 ohms, or 270 watts x 2 bridged at 4 ohms. Channels 1–2 offer a variable 12dB high-pass filter (15Hz–500Hz or 300Hz–10kHz), while channels 3–4 add variable 12dB high-pass (15Hz–500Hz) and low-pass (30Hz–500Hz or 600Hz–10kHz) filters, all with x1\/x20 frequency multipliers and a variable 12dB bass boost at 50Hz. DC auto-sensing turn-on, a sealed removable control cover, and a robust cast aluminum casing provide easy setup, heat dissipation, and weather protection, backed by thermal, voltage, speaker-short, and DC-offset circuitry. To access audio settings, unscrew the badge with an allen key. 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\u003eWater-resistant Class-D design for powersports and daily drivers\u003c\/li\u003e\n\u003cli\u003eCh. 1–2 variable 12dB high-pass: 15Hz–500Hz or 300Hz–10kHz\u003c\/li\u003e\n\u003cli\u003eCh. 3–4 variable 12dB high-pass (15Hz–500Hz) and low-pass (30Hz–500Hz or 600Hz–10kHz)\u003c\/li\u003e\n\u003cli\u003ex1\/x20 crossover frequency multipliers with variable 12dB bass boost @ 50Hz\u003c\/li\u003e\n\u003cli\u003eHeavy cast aluminum heat sink with removable control cover and optional wired remote\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 @ 4Ω\u003c\/td\u003e\n\u003ctd\u003e100W x 4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRMS @ 2Ω\u003c\/td\u003e\n\u003ctd\u003e135W x 4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRMS @ 4Ω Bridged\u003c\/td\u003e\n\u003ctd\u003e270W x 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClass\u003c\/td\u003e\n\u003ctd\u003eD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHigh-Pass Filter (Ch. 1–2)\u003c\/td\u003e\n\u003ctd\u003e15Hz–500Hz or 300Hz–10kHz (12dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHigh-Pass Filter (Ch. 3–4)\u003c\/td\u003e\n\u003ctd\u003e15Hz–500Hz (12dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLow-Pass Filter (Ch. 3–4)\u003c\/td\u003e\n\u003ctd\u003e30Hz–500Hz or 600Hz–10kHz (12dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCrossover Multiplier\u003c\/td\u003e\n\u003ctd\u003ex1\/x20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBass Boost\u003c\/td\u003e\n\u003ctd\u003e12dB @ 50Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeatherproofing\u003c\/td\u003e\n\u003ctd\u003eWater resistant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection\u003c\/td\u003e\n\u003ctd\u003eThermal, voltage, speaker short, DC-offset\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Sundown Audio","offers":[{"title":"Default Title","offer_id":66820144070701,"sku":"A-SDX1004","price":349.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/sundown-audio-sdx-100-4-4-channel-weatherproof-amplifier-w_087cc631-f27a-4a6a-bcca-848f325464f2.jpg?v=1782679612"},{"product_id":"sundown-audio-sdx-100-6-6-channel-weatherproof-amplifier","title":"Sundown Audio SDX-100.6 6-Channel Weatherproof Amplifier","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower\u003c\/strong\u003e — 100W x 6 @ 4Ω, 150W x 6 @ 2Ω, 300W x 3 @ 4Ω bridged\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass\u003c\/strong\u003e — Class-D, 6-channel, water-resistant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilters\u003c\/strong\u003e — Variable 12dB HPF\/LPF per channel pair, x1\/x20 multiplier\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuild\u003c\/strong\u003e — Heavy cast aluminum heat sink, removable control cover\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection\u003c\/strong\u003e — Thermal, voltage, speaker short, DC-offset\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eThis Listing Includes:\u003c\/strong\u003e (1) Sundown Audio SDX-100.6 6-Channel Weatherproof Amplifier\u003c\/p\u003e\n\u003cp\u003eThe water-resistant SDX-100.6 is a compact Class-D amplifier built for cars, UTVs, and open-air vehicles, delivering 100 watts x 6 at 4 ohms, 150 watts x 6 at 2 ohms, or 300 watts x 3 bridged at 4 ohms. Each channel pair has dedicated variable 12dB high-pass and low-pass filters with x1\/x20 frequency multipliers, letting you tailor mids, highs, and lows independently. DC auto-sensing turn-on, a sealed removable control cover, and a robust cast aluminum casing deliver easy setup, superior heat dissipation, and weather protection, all backed by thermal, voltage, speaker-short, and DC-offset circuitry. To access audio settings, unscrew the badge with an allen key. 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\u003eWater-resistant Class-D design for powersports and daily drivers\u003c\/li\u003e\n\u003cli\u003eCh. 1–2 variable 12dB high-pass and low-pass: 15Hz–500Hz or 300Hz–10kHz\u003c\/li\u003e\n\u003cli\u003eCh. 3–4 variable 12dB high-pass (15Hz–500Hz) and low-pass (30Hz–500Hz or 600Hz–10kHz)\u003c\/li\u003e\n\u003cli\u003eCh. 5–6 variable 12dB low-pass: 30Hz–500Hz\u003c\/li\u003e\n\u003cli\u003ex1\/x20 crossover multipliers with removable control cover and optional wired remote\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 @ 4Ω\u003c\/td\u003e\n\u003ctd\u003e100W x 6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRMS @ 2Ω\u003c\/td\u003e\n\u003ctd\u003e150W x 6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRMS @ 4Ω Bridged\u003c\/td\u003e\n\u003ctd\u003e300W x 3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClass\u003c\/td\u003e\n\u003ctd\u003eD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHigh-Pass Filter (Ch. 1–2)\u003c\/td\u003e\n\u003ctd\u003e15Hz–500Hz or 300Hz–10kHz (12dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHigh-Pass Filter (Ch. 3–4)\u003c\/td\u003e\n\u003ctd\u003e15Hz–500Hz (12dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLow-Pass Filter (Ch. 1–2)\u003c\/td\u003e\n\u003ctd\u003e15Hz–500Hz or 300Hz–10kHz (12dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLow-Pass Filter (Ch. 3–4)\u003c\/td\u003e\n\u003ctd\u003e30Hz–500Hz or 600Hz–10kHz (12dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLow-Pass Filter (Ch. 5–6)\u003c\/td\u003e\n\u003ctd\u003e30Hz–500Hz (12dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCrossover Multiplier\u003c\/td\u003e\n\u003ctd\u003ex1\/x20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeatherproofing\u003c\/td\u003e\n\u003ctd\u003eWater resistant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection\u003c\/td\u003e\n\u003ctd\u003eThermal, voltage, speaker short, DC-offset\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Sundown Audio","offers":[{"title":"Default Title","offer_id":66820175462445,"sku":"A-SDX1006","price":299.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/sundown-audio-sdx-1006-6-channel-100x6-car-audio-amplifieramp-763460.png?v=1780545828"},{"product_id":"sundown-audio-sdx-400-1-weatherproof-mono-amplifier","title":"Sundown Audio SDX-400.1 Weatherproof Mono Amplifier","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRMS Power\u003c\/strong\u003e — 400W x 1 @ 1Ω, 300W x 1 @ 2Ω, 175W x 1 @ 4Ω\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass\u003c\/strong\u003e — Class D monoblock\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Pass Filter\u003c\/strong\u003e — Variable 12dB, 50Hz–250Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBass Boost\u003c\/strong\u003e — Variable 12dB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeatherproofing\u003c\/strong\u003e — Water-resistant with removable sealed audio control cover\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eThis Listing Includes:\u003c\/strong\u003e (1) Sundown Audio SDX-400.1 Weatherproof Mono Amplifier\u003c\/p\u003e\n\u003cp\u003eThe SDX-400.1 is a compact water-resistant Class D monoblock rated at 400 watts at 1 ohm, 300 watts at 2 ohms, and 175 watts at 4 ohms. It features a variable 12dB low-pass filter from 50Hz to 250Hz, a variable 12dB bass boost, and DC auto-sensing turn-on, with a full suite of audio controls protected beneath a removable sealed cover. A heavy cast aluminum heat sink provides superior heat dissipation and shields the amp from the elements, and thermal, voltage, speaker-short, and DC-offset protection circuitry guards the unit. Built for cars, UTVs, and open-air vehicles, it ships with a wired remote control. 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\u003eWater-resistant design for powersports and daily drivers\u003c\/li\u003e\n\u003cli\u003eHeavy cast aluminum heat sink for superior cooling\u003c\/li\u003e\n\u003cli\u003eRemovable sealed audio control cover (badge unscrews with an allen key)\u003c\/li\u003e\n\u003cli\u003eDC auto-sensing turn-on\u003c\/li\u003e\n\u003cli\u003eWired remote control 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 @ 1Ω\u003c\/td\u003e\n\u003ctd\u003e400W x 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRMS @ 2Ω\u003c\/td\u003e\n\u003ctd\u003e300W x 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRMS @ 4Ω\u003c\/td\u003e\n\u003ctd\u003e175W x 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLow-Pass Filter\u003c\/td\u003e\n\u003ctd\u003eVariable 12dB, 50Hz–250Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBass Boost\u003c\/td\u003e\n\u003ctd\u003eVariable 12dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTurn-On\u003c\/td\u003e\n\u003ctd\u003eDC auto-sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection\u003c\/td\u003e\n\u003ctd\u003eThermal, voltage, speaker short, DC-offset\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Sundown Audio","offers":[{"title":"Default Title","offer_id":66820223598637,"sku":"A-SDX400","price":99.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/sundown-audio-sdx-4001-400w-marine-grade-powersports-audio-amplifieramp-810298.png?v=1780545868"},{"product_id":"sundown-audio-sdx-1200-1-weatherproof-mono-amplifier","title":"Sundown Audio SDX-1200.1 Weatherproof Mono Amplifier","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower\u003c\/strong\u003e — 1,200W @ 1Ω, 825W @ 2Ω, 450W @ 4Ω RMS mono\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass\u003c\/strong\u003e — Class D monoblock\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter\u003c\/strong\u003e — Variable 12dB low-pass: 50Hz – 250Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuild\u003c\/strong\u003e — Water-resistant with heavy cast aluminum heat sink\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection\u003c\/strong\u003e — Thermal, voltage, speaker short \u0026amp; DC-offset\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eThis Listing Includes:\u003c\/strong\u003e (1) Sundown Audio SDX-1200.1 Weatherproof Mono Amplifier\u003c\/p\u003e\n\u003cp\u003eThe water-resistant SDX-1200.1 is a compact Class D monoblock built for your car, UTV, or any open-air vehicle, delivering exceptional fidelity in harsh environments. A full suite of audio controls sits protected beneath a sealed, removable cover, including a variable 12dB low-pass filter (50Hz–250Hz) and variable bass boost, with DC auto-sensing turn-on for easy installation. A robust cast aluminum casing provides superior heat dissipation and shields the electronics from the elements, and a full protection suite guards against thermal, voltage, speaker-short, and DC-offset faults. Rated at 1,200W at 1 ohm and supplied with a wired remote control. 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\u003eWater-resistant design for powersports and daily drivers\u003c\/li\u003e\n\u003cli\u003eVariable 12dB low-pass filter and variable bass boost\u003c\/li\u003e\n\u003cli\u003eDC auto-sensing turn-on\u003c\/li\u003e\n\u003cli\u003eHeavy cast aluminum heat sink with removable audio control cover\u003c\/li\u003e\n\u003cli\u003eIncluded wired remote 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\u003e1,200 Watts x 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRMS Power @ 2Ω\u003c\/td\u003e\n\u003ctd\u003e825 Watts x 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRMS Power @ 4Ω\u003c\/td\u003e\n\u003ctd\u003e450 Watts x 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClass\u003c\/td\u003e\n\u003ctd\u003eD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLow-Pass Filter\u003c\/td\u003e\n\u003ctd\u003eVariable 12dB, 50Hz – 250Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeatherproofing\u003c\/td\u003e\n\u003ctd\u003eWater-resistant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Sundown Audio","offers":[{"title":"Default Title","offer_id":66820227530797,"sku":"A-SDX1200","price":399.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/sundown-audio-sdx-12001-1200w-marine-grade-powersports-audio-amplifieramp-738657_d4354e37-5144-4fe9-bc17-9231c807369a.png?v=1780545873"}],"url":"https:\/\/www.jsultimatesounds.com\/collections\/sundown-audio-sdx.oembed","provider":"JS Ultimate Sounds","version":"1.0","type":"link"}