{"product_id":"down4sound-m3-1004-marine-700w-rms-amplifier","title":"Down4Sound M3-1004 (marine) - 700W RMS Amplifier","description":"\u003cp\u003eThe \u003cstrong\u003eDOWN4SOUND M3-1004 Marine \u0026amp; Off-Road Amplifier\u003c\/strong\u003e is a compact 4-channel Class D amplifier delivering \u003cstrong\u003e700 watts RMS\u003c\/strong\u003e of clean, efficient power for boats, jet skis, side-by-sides, UTVs, motorcycles, mud trucks, and off-road builds.\u003c\/p\u003e \u003cp\u003eEngineered for demanding marine and outdoor environments, this amplifier features a sealed aluminum chassis, conformal-coated internal PCB, and corrosion-resistant terminals designed to withstand moisture, salt air, mud, vibration, and real-world exposure.\u003c\/p\u003e \u003cp\u003eWith proper installation, the M3-1004 is built to handle extreme marine conditions, including high-moisture and water-exposed applications. Whether mounted in a wake boat hull, jet ski compartment, motorcycle saddlebag, side-by-side dash, mud truck cab, or custom off-road build, it delivers reliable performance with confidence.\u003c\/p\u003e \u003chr\u003e\u003ch2\u003ePower Output\u003c\/h2\u003e \u003cul\u003e\n\u003cli\u003e4 × 100W RMS @ 4 ohms\u003c\/li\u003e \u003cli\u003e4 × 160W RMS @ 2 ohms\u003c\/li\u003e \u003cli\u003e2 × 330W RMS @ 4 ohms bridged\u003c\/li\u003e \u003cli\u003e700W RMS total output\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eFull-range Class D design ensures high efficiency and reduced heat, ideal for marine and powersports electrical systems.\u003c\/p\u003e \u003chr\u003e\u003ch2\u003eBuilt for Marine \u0026amp; Off-Road Environments\u003c\/h2\u003e \u003cul\u003e\n\u003cli\u003eMarine-grade construction\u003c\/li\u003e \u003cli\u003eSealed aluminum housing\u003c\/li\u003e \u003cli\u003eConformal-coated internal PCB\u003c\/li\u003e \u003cli\u003eWater Resistant Construction\u003c\/li\u003e \u003cli\u003eWeather Resistant Construction\u003c\/li\u003e \u003cli\u003eCorrosion-resistant terminals\u003c\/li\u003e \u003cli\u003eDesigned for high-moisture and water-exposed installations\u003c\/li\u003e \u003cli\u003eEngineered for vibration resistance in marine and off-road conditions\u003c\/li\u003e \u003c\/ul\u003e \u003chr\u003e\u003ch2\u003ePrecision Crossovers – Band-Pass Capable\u003c\/h2\u003e \u003cul\u003e\n\u003cli\u003eAdjustable HPF \u0026amp; LPF: 20Hz–800Hz\u003c\/li\u003e \u003cli\u003eBand-pass capable using onboard crossovers\u003c\/li\u003e \u003cli\u003e41-point dial control for accurate system tuning\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eFlexible integration for speakers, midrange drivers, and compact subwoofer setups.\u003c\/p\u003e \u003chr\u003e\u003ch2\u003eCompact Installation Size\u003c\/h2\u003e \u003cul\u003e\n\u003cli\u003e9.84\" × 5.11\" × 2.38\"\u003c\/li\u003e \u003cli\u003e250 × 130 × 60 mm\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003ePerfect for tight installs in:\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003eWake boats\u003c\/li\u003e \u003cli\u003ePontoon boats\u003c\/li\u003e \u003cli\u003eJet boats\u003c\/li\u003e \u003cli\u003eJet skis\u003c\/li\u003e \u003cli\u003eMotorcycle baggers\u003c\/li\u003e \u003cli\u003eSide-by-sides \u0026amp; UTVs\u003c\/li\u003e \u003cli\u003eMud trucks\u003c\/li\u003e \u003cli\u003eOverland rigs\u003c\/li\u003e \u003cli\u003eOff-road builds\u003c\/li\u003e \u003cli\u003eCustom show systems\u003c\/li\u003e \u003c\/ul\u003e \u003chr\u003e\u003ch2\u003eSmart 4-Way Protection Circuit\u003c\/h2\u003e \u003cul\u003e\n\u003cli\u003eThermal protection\u003c\/li\u003e \u003cli\u003eVoltage protection\u003c\/li\u003e \u003cli\u003eShort circuit protection\u003c\/li\u003e \u003cli\u003eDC overload protection\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eDesigned for stable performance in demanding marine and powersports electrical systems.\u003c\/p\u003e \u003chr\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e \u003cul\u003e\n\u003cli\u003eTotal Power Output: 700W RMS\u003c\/li\u003e \u003cli\u003eChannels: 4\u003c\/li\u003e \u003cli\u003eClass: Full-Range Class D\u003c\/li\u003e \u003cli\u003eFrequency Response: 10Hz–23.7kHz\u003c\/li\u003e \u003cli\u003eInput Sensitivity: 0.2V–6V\u003c\/li\u003e \u003cli\u003eTHD: \u0026lt;0.1%\u003c\/li\u003e \u003cli\u003eSignal-to-Noise Ratio: \u0026gt;83dB\u003c\/li\u003e \u003cli\u003eOperating Voltage: 9V–15.5V\u003c\/li\u003e \u003cli\u003eFuse Rating: 60A\u003c\/li\u003e \u003c\/ul\u003e \u003chr\u003e\u003ch2\u003eWhy Choose the M3-1004?\u003c\/h2\u003e \u003cp\u003eBecause power, durability, and clean design should perform anywhere — on water, in mud, or on the trail.\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003eThe M3-1004 delivers dependable marine and off-road audio performance in a compact, installation-friendly chassis built for real-world conditions.\u003c\/li\u003e \u003cli\u003eBuilt for boats.\u003c\/li\u003e \u003cli\u003eBuilt for powersports.\u003c\/li\u003e \u003cli\u003eBuilt for on-road and off-road systems that demand reliability.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eAdd it to your setup and keep your install powerful, clean, and ready for the elements.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAuthorized Down4Sound dealer at JS Ultimate Sounds. Free shipping on orders $99+.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Down4Sound","offers":[{"title":"White Gloss","offer_id":66828343902253,"sku":"M3-1004-WHG-","price":249.99,"currency_code":"USD","in_stock":true},{"title":"Black Gloss","offer_id":66828343935021,"sku":"M3-1004-BKG-","price":249.99,"currency_code":"USD","in_stock":true},{"title":"Orange","offer_id":66828343967789,"sku":"M3-1004-ORGL-","price":249.99,"currency_code":"USD","in_stock":true},{"title":"Green","offer_id":66828344000557,"sku":"M3-1004-GRGL-","price":249.99,"currency_code":"USD","in_stock":true},{"title":"Blue Glow","offer_id":66828344033325,"sku":"M3-1004-BLGL-","price":249.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/down4sound-m3-1004-marine-700w-rms-amplifier-w_6c568aad-f95a-4cb6-9f1a-2038a52b3227.jpg?v=1782676562","url":"https:\/\/www.jsultimatesounds.com\/products\/down4sound-m3-1004-marine-700w-rms-amplifier","provider":"JS Ultimate Sounds","version":"1.0","type":"link"}