{"product_id":"mb-quart-na2-320-4-compact-four-channel-320-watt-powersports-amplifier-black","title":"MB Quart NA2-320.4","description":"\u003ch2 data-section-id=\"gzirwt\" data-start=\"111\" data-end=\"178\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"114\" data-end=\"178\"\u003eCompact 4-Channel Powersports Amplifier Power\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"180\" data-end=\"541\"\u003eThe \u003cstrong data-start=\"184\" data-end=\"246\"\u003eMB Quart NA2-320.4 Compact 4-Channel Powersports Amplifier\u003c\/strong\u003e delivers efficient, reliable audio power in a small, rugged design built for marine and powersports environments. With up to \u003cstrong data-start=\"372\" data-end=\"398\"\u003e320 watts total output\u003c\/strong\u003e, this Class D amplifier is engineered to enhance full-range speaker systems in motorcycles, ATVs, UTVs, boats, and other compact audio setups.\u003c\/p\u003e\n\u003cp data-start=\"543\" data-end=\"813\"\u003eIts efficient design ensures strong performance with minimal heat generation, making it ideal for installations where space is limited but clean, consistent power is essential. Each of the four channels delivers balanced output for front and rear speaker configurations.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1equt0u\" data-start=\"820\" data-end=\"885\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"823\" data-end=\"885\"\u003eFlexible Audio Control with Built-In Tuning\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"887\" data-end=\"1151\"\u003eThe \u003cstrong data-start=\"891\" data-end=\"923\"\u003eMB Quart NA2-320.4 amplifier\u003c\/strong\u003e includes onboard tuning features that allow you to shape your sound system for optimal performance. With a \u003cstrong data-start=\"1031\" data-end=\"1077\"\u003evariable bass boost of up to +12dB at 45Hz\u003c\/strong\u003e, you can enhance low-frequency response for richer, more impactful audio.\u003c\/p\u003e\n\u003cp data-start=\"1153\" data-end=\"1429\"\u003eEach channel pair supports \u003cstrong data-start=\"1180\" data-end=\"1217\"\u003ehigh-pass or full-range operation\u003c\/strong\u003e, allowing flexible system setups depending on your speaker configuration. With a \u003cstrong data-start=\"1299\" data-end=\"1337\"\u003ewide input voltage range (0.2V–9V)\u003c\/strong\u003e and RCA connectivity, it integrates easily with both factory and aftermarket audio systems.\u003c\/p\u003e\n\u003cp data-start=\"1431\" data-end=\"1566\"\u003eA \u003cstrong data-start=\"1433\" data-end=\"1471\"\u003ehigh signal-to-noise ratio (\u0026gt;90dB)\u003c\/strong\u003e ensures clean audio output with minimal distortion, preserving clarity even at higher volumes.\u003c\/p\u003e\n\u003ch2 data-section-id=\"vpoj0c\" data-start=\"1573\" data-end=\"1643\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1576\" data-end=\"1643\"\u003eRugged Design Built for Marine \u0026amp; Powersports Use\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"1645\" data-end=\"1905\"\u003eBuilt for demanding environments, the \u003cstrong data-start=\"1683\" data-end=\"1749\"\u003eNA2-320.4 is certified for marine and powersports applications\u003c\/strong\u003e, making it resistant to vibration and outdoor conditions. Its compact form factor and lightweight construction allow for flexible mounting in tight spaces.\u003c\/p\u003e\n\u003cp data-start=\"1907\" data-end=\"2191\"\u003eQuick-release \u003cstrong data-start=\"1921\" data-end=\"1979\"\u003eMolex connectors simplify installation and maintenance\u003c\/strong\u003e, while the Class D architecture ensures efficient power delivery in all conditions. Despite its small footprint, it delivers strong performance suitable for multi-speaker systems in off-road and marine vehicles.\u003c\/p\u003e\n\u003cp data-start=\"2193\" data-end=\"2327\"\u003eThis amplifier is a dependable solution for users who need durability, simplicity, and solid audio performance in one compact package.\u003c\/p\u003e\n\u003chr data-start=\"2329\" data-end=\"2332\"\u003e\n\u003ch2 data-section-id=\"gku29y\" data-start=\"2334\" data-end=\"2351\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2337\" data-end=\"2351\"\u003eHighlights\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-start=\"2353\" data-end=\"2961\"\u003e\n\u003cli data-section-id=\"1qx0oar\" data-start=\"2353\" data-end=\"2408\"\u003e\u003cstrong data-start=\"2355\" data-end=\"2406\"\u003e320 Watts Total 4-Channel Powersports Amplifier\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-section-id=\"1694fc9\" data-start=\"2409\" data-end=\"2462\"\u003eEfficient \u003cstrong data-start=\"2421\" data-end=\"2460\"\u003eFull-Range Class D Amplifier Design\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"9c6z68\" data-start=\"2463\" data-end=\"2500\"\u003e\u003cstrong data-start=\"2465\" data-end=\"2498\"\u003e80W x 4 @ 2 Ohms Output Power\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-section-id=\"1jq1i8q\" data-start=\"2501\" data-end=\"2538\"\u003e\u003cstrong data-start=\"2503\" data-end=\"2536\"\u003e40W x 4 @ 4 Ohms Output Power\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-section-id=\"16nzi3m\" data-start=\"2539\" data-end=\"2592\"\u003eBuilt for \u003cstrong data-start=\"2551\" data-end=\"2590\"\u003emarine and powersports environments\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"14yff9n\" data-start=\"2593\" data-end=\"2639\"\u003eVariable \u003cstrong data-start=\"2604\" data-end=\"2637\"\u003eBass Boost up to +12dB @ 45Hz\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"ju131n\" data-start=\"2640\" data-end=\"2700\"\u003e\u003cstrong data-start=\"2642\" data-end=\"2698\"\u003eHigh-pass \/ Full-range switchable channels (CH1–CH4)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-section-id=\"s3vnu3\" data-start=\"2701\" data-end=\"2749\"\u003eWide \u003cstrong data-start=\"2708\" data-end=\"2747\"\u003e0.2V–9V input voltage compatibility\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1ablzpg\" data-start=\"2750\" data-end=\"2808\"\u003eHigh signal-to-noise ratio (\u003cstrong data-start=\"2780\" data-end=\"2789\"\u003e\u0026gt;90dB\u003c\/strong\u003e) for clean audio\u003c\/li\u003e\n\u003cli data-section-id=\"vfrqvf\" data-start=\"2809\" data-end=\"2857\"\u003eCompact design for tight installation spaces\u003c\/li\u003e\n\u003cli data-section-id=\"13elz3n\" data-start=\"2858\" data-end=\"2912\"\u003eQuick-release \u003cstrong data-start=\"2874\" data-end=\"2910\"\u003eMolex connectors for easy wiring\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"geewna\" data-start=\"2913\" data-end=\"2961\"\u003eIdeal for motorcycles, ATVs, UTVs, and boats\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2963\" data-end=\"2966\"\u003e\n\u003ch2 data-section-id=\"dkb4ws\" data-start=\"2968\" data-end=\"2991\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2971\" data-end=\"2991\"\u003ePackage Contains\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-start=\"2993\" data-end=\"3197\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\n\u003cli data-section-id=\"1sw541w\" data-start=\"2993\" data-end=\"3051\"\u003e1 × MB Quart NA2-320.4 4-Channel Powersports Amplifier\u003c\/li\u003e\n\u003cli data-section-id=\"70hzn7\" data-start=\"3052\" data-end=\"3096\"\u003e1 × Wiring Harness with Molex Connectors\u003c\/li\u003e\n\u003cli data-section-id=\"r4mzcb\" data-start=\"3097\" data-end=\"3126\"\u003e1 × Mounting Hardware Kit\u003c\/li\u003e\n\u003cli data-section-id=\"apvm7q\" data-start=\"3127\" data-end=\"3161\"\u003e1 × User \/ Installation Manual\u003c\/li\u003e\n\u003cli data-section-id=\"16yej2q\" data-start=\"3162\" data-end=\"3197\" data-is-last-node=\"\"\u003eManufacturer Retail Packaging Box\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MB Quart","offers":[{"title":"Default Title","offer_id":45683312427199,"sku":"806576227335","price":149.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0533\/6252\/4351\/files\/61OS46W47DL.jpg?v=1780524803","url":"https:\/\/nsidistributor.com\/products\/mb-quart-na2-320-4-compact-four-channel-320-watt-powersports-amplifier-black","provider":"NSI Audio Distributing","version":"1.0","type":"link"}