{"product_id":"mrd1000-1","title":"MRD1000.1","description":"\u003cp\u003eAdd dedicated subwoofer power to your boat's audio system without giving up much installation space. The Rockville MRD1000.1 is a white Class D mono amplifier with a 12-inch-long chassis and a dyno-certified output rating of 1000 watts RMS at 1 ohm. Its continuous power ratings also include 700 watts RMS at 2 ohms and 420 watts RMS at 4 ohms.\u003c\/p\u003e\u003cp\u003eA conformal-coated circuit board, UV- and salt-resistant aluminum alloy chassis, and sealed terminals support marine installations. Included white silicone terminal covers fit around the connected cables, with removable caps for unused RCA terminals. These protective features do not establish a waterproof rating.\u003c\/p\u003e\u003cp\u003eSet the low-pass filter between 45 and 200 Hz to shape the frequencies sent to your subwoofer, then adjust the 10–50 Hz subsonic filter to suit your enclosure. Bass boost provides 0–12 dB of adjustment at 45 Hz, while the adjustable input level helps match the amplifier to your source unit.\u003c\/p\u003e\u003cp\u003eThe included white metal bass remote puts level adjustment within reach of your listening position. Its power and clipping indicators help you monitor the amp as you adjust bass between tracks. Tiffany-style RCA connections and a preamp line output provide connections for your source and additional amplification, while 4-gauge power and ground terminals and 10-gauge speaker terminals accommodate the wiring.\u003c\/p\u003e\u003ch2\u003eConnections and Controls\u003c\/h2\u003e\u003cp\u003eThe amplifier includes power, protect and clip indicators, IC-controlled protection circuitry, and a mute-and-delay soft-start system. Match the subwoofer wiring to the amplifier's rated impedance loads and plan the power supply around the stated current requirements. The RMS ratings below are specified at 50 Hz, 1% THD+N and 14.4 VDC; peak ratings are listed separately and are not continuous output ratings.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eType: marine\/boat Class D mono amplifier, white\u003c\/li\u003e\n\u003cli\u003eDyno-certified continuous RMS power: 1000W at 1 ohm; 700W at 2 ohms; 420W at 4 ohms\u003c\/li\u003e\n\u003cli\u003eRMS rating conditions: 50 Hz, 1% THD+N, 14.4 VDC\u003c\/li\u003e\n\u003cli\u003eEfficiency at rated test conditions: 73% at 1 ohm; 84% at 2 ohms; 87% at 4 ohms\u003c\/li\u003e\n\u003cli\u003ePeak power, one channel: 4000W at 1 ohm; 2800W at 2 ohms; 1600W at 4 ohms\u003c\/li\u003e\n\u003cli\u003eConstruction: conformal-coated PCB, UV\/salt-resistant aluminum alloy chassis, sealed terminals\u003c\/li\u003e\n\u003cli\u003ePower supply: high-speed MOSFET\u003c\/li\u003e\n\u003cli\u003eBuilt-in fuse rating: 100A total, four 25A Maxi fuses\u003c\/li\u003e\n\u003cli\u003eBass boost: 0–12 dB at 45 Hz\u003c\/li\u003e\n\u003cli\u003eLow-pass filter: 45–200 Hz\u003c\/li\u003e\n\u003cli\u003eSubsonic filter: 10–50 Hz\u003c\/li\u003e\n\u003cli\u003eAdjustable input signal voltage: 264 mV RMS–8.0 V RMS, measured at 4 ohms\u003c\/li\u003e\n\u003cli\u003eRCA preamp line output: Tiffany-style terminals with 8V preamp circuitry\u003c\/li\u003e\n\u003cli\u003ePower and ground terminals: 4 gauge\u003c\/li\u003e\n\u003cli\u003eSpeaker wire terminals: 10 gauge\u003c\/li\u003e\n\u003cli\u003eProtection: IC-controlled circuitry; mute-and-delay soft start\u003c\/li\u003e\n\u003cli\u003eIndicators: power, protect and clip on amplifier; power and clip on remote\u003c\/li\u003e\n\u003cli\u003eRemote level attenuation: 0 to -26 dB\u003c\/li\u003e\n\u003cli\u003eA-weighted signal-to-noise ratio: 82 dBA at 1W RMS into 4 ohms; 105 dBA at 400W RMS into 4 ohms\u003c\/li\u003e\n\u003cli\u003eFrequency response: 10–193 Hz, ±3 dB\u003c\/li\u003e\n\u003cli\u003eDamping factor: greater than 150 at 100 Hz\u003c\/li\u003e\n\u003cli\u003eOperating voltage: 9–16 VDC\u003c\/li\u003e\n\u003cli\u003eMaximum current draw: 103A at 1 ohm, 50 Hz\u003c\/li\u003e\n\u003cli\u003eTHD+N: less than 0.1% at 1W RMS from 20–250 Hz\u003c\/li\u003e\n\u003cli\u003eDimensions (L × W × H): 12 × 4.9 × 1.8 inches\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eIn the Box\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRockville MRD1000.1 marine Class D mono amplifier\u003c\/li\u003e\n\u003cli\u003eWhite metal bass remote with clipping indicator\u003c\/li\u003e\n\u003cli\u003eWhite remote cable\u003c\/li\u003e\n\u003cli\u003eWhite silicone terminal covers\u003c\/li\u003e\n\u003cli\u003eRemovable RCA terminal caps\u003c\/li\u003e\n\u003cli\u003eStainless steel mounting hardware\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Rockville","offers":[{"title":"Default Title","offer_id":48063871582375,"sku":"MRD1000.1","price":149.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0673\/7998\/6599\/files\/3032643.jpg?v=1791489740","url":"https:\/\/rockvilleaudio.com\/products\/mrd1000-1","provider":"Rockville","version":"1.0","type":"link"}