{"product_id":"mb-quart-reference-ra1-280-4-280-watt-four-channel-amplifier","title":"MB Quart RA1-280.4","description":"\u003ch3 data-start=\"101\" data-end=\"164\"\u003eClean Power for Multi-Speaker Systems\u003c\/h3\u003e\n\u003cp data-start=\"165\" data-end=\"512\"\u003eThe MB Quart Reference RA1-280.4 four-channel car amplifier is engineered to deliver clear, consistent power to your vehicle’s sound system. With a total peak output of 280 watts, this amplifier is ideal for powering front and rear speakers, providing a noticeable upgrade in volume, clarity, and overall sound quality compared to factory systems.\u003c\/p\u003e\n\u003ch3 data-start=\"519\" data-end=\"593\"\u003ePrecision Sound Control and Wide Frequency Range\u003c\/h3\u003e\n\u003cp data-start=\"594\" data-end=\"963\"\u003eFeaturing variable electronic crossovers, the RA1-280.4 gives you full control over how sound is distributed to your speakers. Its wide frequency response of 10Hz–35kHz ensures accurate reproduction of deep lows, detailed mids, and crisp highs. The built-in bass control with 0–9dB boost allows you to fine-tune low-frequency output to match your listening preferences.\u003c\/p\u003e\n\u003ch3 data-start=\"970\" data-end=\"1041\"\u003eEfficient Class D Design with OEM Integration\u003c\/h3\u003e\n\u003cp data-start=\"1042\" data-end=\"1413\"\u003eBuilt on an efficient Class D MOSFET platform, this amplifier delivers strong performance while minimizing heat and power draw. DC sensing technology allows for easy integration into factory audio systems by adapting RCA cables from the source unit. Heavy-duty 4 AWG power terminals and 12 AWG speaker terminals ensure secure connections and reliable long-term operation.\u003c\/p\u003e\n\u003chr data-start=\"1415\" data-end=\"1418\"\u003e\n\u003ch3 data-start=\"1420\" data-end=\"1436\"\u003eHighlights:\u003c\/h3\u003e\n\u003cul data-start=\"1437\" data-end=\"1915\"\u003e\n\u003cli data-start=\"1437\" data-end=\"1485\"\u003e\n\u003cp data-start=\"1439\" data-end=\"1485\"\u003e4-channel Class D MOSFET car audio amplifier\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1486\" data-end=\"1523\"\u003e\n\u003cp data-start=\"1488\" data-end=\"1523\"\u003e280 watts total peak power output\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1524\" data-end=\"1556\"\u003e\n\u003cp data-start=\"1526\" data-end=\"1556\"\u003ePower output: 4x70W @ 2 ohms\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1557\" data-end=\"1589\"\u003e\n\u003cp data-start=\"1559\" data-end=\"1589\"\u003ePower output: 4x50W @ 4 ohms\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1590\" data-end=\"1643\"\u003e\n\u003cp data-start=\"1592\" data-end=\"1643\"\u003eVariable electronic crossovers for precise tuning\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1644\" data-end=\"1683\"\u003e\n\u003cp data-start=\"1646\" data-end=\"1683\"\u003eWide frequency response: 10Hz–35kHz\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1684\" data-end=\"1726\"\u003e\n\u003cp data-start=\"1686\" data-end=\"1726\"\u003eBuilt-in bass control with 0–9dB boost\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1727\" data-end=\"1773\"\u003e\n\u003cp data-start=\"1729\" data-end=\"1773\"\u003eDC sensing for easy OEM system integration\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1774\" data-end=\"1819\"\u003e\n\u003cp data-start=\"1776\" data-end=\"1819\"\u003eEfficient design with low heat generation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1820\" data-end=\"1864\"\u003e\n\u003cp data-start=\"1822\" data-end=\"1864\"\u003e4 AWG power and 12 AWG speaker terminals\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1865\" data-end=\"1915\"\u003e\n\u003cp data-start=\"1867\" data-end=\"1915\"\u003eCompact size for flexible installation options\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1922\" data-end=\"1949\"\u003eWhat’s in the Package:\u003c\/h3\u003e\n\u003cul data-start=\"1950\" data-end=\"2059\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\n\u003cli data-start=\"1950\" data-end=\"2002\"\u003e\n\u003cp data-start=\"1952\" data-end=\"2002\"\u003eMB Quart Reference RA1-280.4 4-Channel Amplifier\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2003\" data-end=\"2024\"\u003e\n\u003cp data-start=\"2005\" data-end=\"2024\"\u003eMounting hardware\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2025\" data-end=\"2059\" data-is-last-node=\"\"\u003e\n\u003cp data-start=\"2027\" data-end=\"2059\" data-is-last-node=\"\"\u003eUser manual \/ installation guide\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MB Quart","offers":[{"title":"Default Title","offer_id":44931153199295,"sku":"806576232667","price":239.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0533\/6252\/4351\/files\/51p_whjCOwL.jpg?v=1769118145","url":"https:\/\/nsidistributor.com\/products\/mb-quart-reference-ra1-280-4-280-watt-four-channel-amplifier","provider":"NSI Audio Distributing","version":"1.0","type":"link"}