{"product_id":"ds18-nxl-f4-marine-amplifier","title":"DS18 NXL-F4 4-Channel Marine Amplifier — Flush Mount","description":"\u003cdiv\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003ePower multiple marine speakers from one compact amplifier with the DS18 NXL-F4 4-channel marine amplifier. Its flush-mount configuration and Class D design deliver up to 160W RMS per channel at 2 ohms, with a 40–400Hz crossover range for system setup.\u003c\/p\u003e \u003ch2\u003eKey Features \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour amplified channels:\u003c\/strong\u003e Power multiple speakers from one unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass D design:\u003c\/strong\u003e Get four-channel amplification in a flush-mount configuration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo per-channel power ratings:\u003c\/strong\u003e Output is 160W RMS per channel at 2 ohms or 100W RMS per channel at 4 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable crossover range:\u003c\/strong\u003e Set the crossover within the 40–400Hz range to suit your installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRear-channel bass boost:\u003c\/strong\u003e Adjust bass boost from 0–18dB on the rear channels.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmplifier\u003c\/td\u003e\n\u003ctd\u003e4-channel Class D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Output @ 2 ohms\u003c\/td\u003e\n\u003ctd\u003e160Wx4CH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Output @ 4 ohms\u003c\/td\u003e\n\u003ctd\u003e100Wx4CH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBridge Power Output @ 4 ohms\u003c\/td\u003e\n\u003ctd\u003e320Wx2CH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Harmonic Distortion\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;0.1%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eS\/N Ratio Red 1W @ 4 ohms\u003c\/td\u003e\n\u003ctd\u003e90dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGain Range\u003c\/td\u003e\n\u003ctd\u003e0.2-6V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCrossover Range\u003c\/td\u003e\n\u003ctd\u003e40 - 400Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Range\u003c\/td\u003e\n\u003ctd\u003e20Hz - 20KHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBass Boost\u003c\/td\u003e\n\u003ctd\u003e0-18dB (Rear CHs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eForced Cooling System\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBass Remote Control\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTopology Operation\u003c\/td\u003e\n\u003ctd\u003eFull Range Digital\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Configuration\u003c\/td\u003e\n\u003ctd\u003eFlush mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (MM)\u003c\/td\u003e\n\u003ctd\u003e238 x 135 x 41\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003ch2\u003eWhy Choose This Product?\u003c\/h2\u003e\n\u003cp\u003eThe NXL-F4 gives you four separately amplified channels in one flush-mount unit. Its published power ratings make it easier to compare output at 2-ohm and 4-ohm loads when planning your speaker setup. The stated bridge output provides another rating to consider when reviewing the amplifier’s supported configurations.\u003c\/p\u003e\n\u003cp\u003eUse the crossover range to make installation-specific adjustments, and note that bass boost applies to the rear channels. Match speaker impedance and crossover settings to your system rather than choosing settings by output rating alone.\u003c\/p\u003e \u003ch2\u003eInstallation \u0026amp; Compatibility Notes\u003c\/h2\u003e\n\u003cp\u003eCheck the amplifier’s 238 x 135 x 41 mm dimensions, along with wiring and fuse requirements, before installation. Follow the manufacturer’s instructions and keep electrical connections protected from water.\u003c\/p\u003e\n\u003cp\u003eA marine rating does not replace proper installation or permit intentional submersion. Confirm speaker impedance and crossover settings for your installation.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eHow much power does the DS18 NXL-F4 provide?\u003c\/h3\u003e\n\u003cp\u003eIts published output is 160W RMS per channel at 2 ohms and 100W RMS per channel at 4 ohms.\u003c\/p\u003e\n\u003ch3\u003eWhat is its bridged power rating?\u003c\/h3\u003e\n\u003cp\u003eThe listed bridge power output is 320Wx2CH at 4 ohms. Follow the manufacturer’s instructions for installation and wiring.\u003c\/p\u003e\n\u003ch3\u003eWhat crossover range can I set?\u003c\/h3\u003e\n\u003cp\u003eThe crossover range is 40 - 400Hz. Match the setting to your speaker installation.\u003c\/p\u003e\n\u003ch3\u003eWhat are the amplifier’s dimensions?\u003c\/h3\u003e\n\u003cp\u003eIt measures 238 x 135 x 41 mm. Compare these dimensions with your planned mounting location.\u003c\/p\u003e\n\u003ch3\u003eCan the amplifier be submerged?\u003c\/h3\u003e\n\u003cp\u003eA marine rating does not permit intentional submersion. Keep connections protected from water and follow the manufacturer’s installation instructions.\u003c\/p\u003e \u003ch2\u003eExplore More\u003c\/h2\u003e\n\u003cp\u003eShop the DS18 NXL-F4 at 12 Volt Outlet. Want to learn more about DS18? Explore our \u003ca href=\"https:\/\/www.12voltoutlet.com\/pages\/ds18\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eDS18 brand profile\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"DS18","offers":[{"title":"Default Title","offer_id":67698585862372,"sku":"NXL-F4","price":499.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0842\/2522\/9028\/files\/upload-1792551743340.jpg?v=1792708541","url":"https:\/\/www.12voltoutlet.com\/products\/ds18-nxl-f4-marine-amplifier","provider":"12 Volt Outlet","version":"1.0","type":"link"}