{"product_id":"wet-sounds-sinister-sdx4-1370w-4-channel-marine-amplifier","title":"Wet Sounds Sinister-SDX4 1370W 4-Channel Full-Range Class-D Marine \u0026 Powersports Amplifier","description":"\u003cp\u003eThe \u003cstrong\u003eWet Sounds Sinister-SDX4 4-Channel Full-Range Class-D Marine Amplifier\u003c\/strong\u003e (MPN: \u003ccode\u003eSinister-SDX4\u003c\/code\u003e | UPC: \u003ccode\u003e814820024623\u003c\/code\u003e) brings competition-grade multi-channel output to luxury wake boats, center-console yachts, and extreme powersports builds—delivering up to \u003cstrong\u003e1,370 watts of continuous RMS power\u003c\/strong\u003e from a single 14.5-inch cast-aluminum footprint.\u003c\/p\u003e\u003cp\u003ePowered by Wet Sounds' exclusive \u003cstrong\u003eMAXED™ Class-D Power Supply\u003c\/strong\u003e, the Sinister-SDX4 outputs \u003cstrong\u003e185W x 4 RMS @ 4Ω\u003c\/strong\u003e, \u003cstrong\u003e340W x 4 RMS @ 2Ω\u003c\/strong\u003e, or a staggering \u003cstrong\u003e685W x 2 RMS bridged @ 4Ω\u003c\/strong\u003e (the benchmark configuration for driving a pair of REV 10 or REV 12 HD wake tower speakers to full potential) while maintaining rock-solid thermal stability and crystal-clear 8Hz–35kHz fidelity.\u003c\/p\u003e\u003ch3\u003eKey Features \u0026amp; Engineering Highlights\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e685W x 2 Bridged @ 4Ω Benchmark Tower Output:\u003c\/strong\u003e Bridges cleanly to unleash maximum dynamic range on high-power HLCD tower pods, or runs up to 8 REVO 8-inch in-boat speakers at 2Ω stereo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMAXED™ Class-D High-Efficiency Supply:\u003c\/strong\u003e Minimizes battery amperage draw and heat buildup during all-day sandbar and cove sessions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarine-Sealed Cast Aluminum Construction:\u003c\/strong\u003e Conformal-coated PCB, sealed top-panel tuning cover, microprocessor fault protection, and backlit LED badge.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemovable Plugs \u0026amp; Remote Control Included:\u003c\/strong\u003e Quick-disconnect power\/speaker terminals simplify winterization and service; includes dash remote level control.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eWet Sounds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eSeries \u0026amp; Model \/ MPN\u003c\/th\u003e\n\u003ctd\u003eSinister SDX Series — Sinister-SDX4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eUPC \/ GTIN\u003c\/th\u003e\n\u003ctd\u003e814820024623\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eAmplifier Topology \u0026amp; Channels\u003c\/th\u003e\n\u003ctd\u003eFull-Range MAXED™ Class-D — 4-Channel (Bridgeable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eRMS Power @ 4Ω\u003c\/th\u003e\n\u003ctd\u003e185W x 4 @ 14.4V (\u0026lt;1% THD)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eRMS Power @ 2Ω\u003c\/th\u003e\n\u003ctd\u003e340W x 4 @ 14.4V (\u0026lt;1% THD)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eRMS Power Bridged @ 4Ω\u003c\/th\u003e\n\u003ctd\u003e685W x 2 (1,370W Total RMS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eFrequency Response\u003c\/th\u003e\n\u003ctd\u003e8Hz – 35kHz (-3dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eCrossover Range\u003c\/th\u003e\n\u003ctd\u003e30Hz – 300Hz (12dB\/Octave High-Pass \/ Low-Pass)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eBass Boost\u003c\/th\u003e\n\u003ctd\u003e0 – 12.5dB Variable @ 27Hz – 110Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eInput Sensitivity\u003c\/th\u003e\n\u003ctd\u003e0.2V – 6.1V RMS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eDimensions (W x D x H)\u003c\/th\u003e\n\u003ctd\u003e14.50\" W x 10.25\" D x 3.00\" H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eIncluded Accessories\u003c\/th\u003e\n\u003ctd\u003eWired Remote Level Control \u0026amp; Removable Power\/Speaker Terminal Plugs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eWhy Buy Your Wet Sounds Amplifier From TDS Car Audio?\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eAuthorized Wet Sounds Dealer + Marine, Powersports \u0026amp; Harley-Davidson Audio Specialists in Toledo, OH:\u003c\/strong\u003e Wet Sounds voids all manufacturer warranties on amplifiers sold through unauthorized websites or marketplace resellers. When you order from \u003cstrong\u003eTDS Car Audio\u003c\/strong\u003e, you get a factory-sealed, genuine Wet Sounds amplifier backed by the full \u003cstrong\u003e2-Year Wet Sounds Limited Warranty\u003c\/strong\u003e plus \u003cstrong\u003eFree Fast Shipping\u003c\/strong\u003e on orders $199.99+. Whether you are powering wakeboard tower HLCDs, multi-subwoofer marine cabins, side-by-side UTV roofs, Jeep Wranglers, or tight Harley-Davidson bagger fairings and saddlebags, our installation team sets gains and crossovers on Wet Sounds amplifiers every week at our Central Ave facility in Toledo, Ohio—call us at \u003cstrong\u003e(419) 376-6140\u003c\/strong\u003e for expert system matching before you buy.\u003c\/p\u003e\u003cp\u003e\u003csmall\u003e\u003cem\u003eWARNING: This product can expose you to chemicals including lead and DEHP, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.p65warnings.ca.gov.\u003c\/em\u003e\u003c\/small\u003e\u003c\/p\u003e","brand":"Wet Sounds","offers":[{"title":"Default Title","offer_id":50850944975010,"sku":"Sinister-SDX4","price":1349.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0455\/3526\/4930\/files\/SDX_Web_Hero__22273.1732288528.1280.1280.png?v=1794363138","url":"https:\/\/tdscaraudio.com\/products\/wet-sounds-sinister-sdx4-1370w-4-channel-marine-amplifier","provider":"TDS Car Audio","version":"1.0","type":"link"}