{"product_id":"ds18-nxl-n4bt-marine-amplifier","title":"DS18 NXL-N4BT 4-Channel Marine Amplifier with Bluetooth","description":"\u003cdiv\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eStream audio over Bluetooth and power multiple marine speakers with the DS18 NXL-N4BT 4-channel marine amplifier. Its built-in Bluetooth 5.1 receiver and selectable crossover options give you source and filtering choices in one compact amplifier.\u003c\/p\u003e \u003ch2\u003eKey Features \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eFour amplified channels:\u003c\/b\u003e Run multiple speakers from one unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePower at two impedances:\u003c\/b\u003e Choose from 4 x 100W RMS at 4 ohms or 4 x 150W RMS at 2 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBluetooth 5.1 streaming:\u003c\/b\u003e Send audio to the amplifier using a Bluetooth source.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSelectable crossover:\u003c\/b\u003e Choose HPF, LPF, or full-range operation, with a 40–500Hz filter range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMarine-rated enclosure:\u003c\/b\u003e The amplifier carries an IP67 rating; proper installation is still important.\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\u003eTotal Watts (Peak)\u003c\/td\u003e\n\u003ctd\u003e1800W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRMS Power @ 4 ohm\u003c\/td\u003e\n\u003ctd\u003e4 x 100W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRMS Power @ 2 ohm\u003c\/td\u003e\n\u003ctd\u003e4 x 150W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRMS Power @ 4 ohm Bridge\u003c\/td\u003e\n\u003ctd\u003e2 x 300W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Response\u003c\/td\u003e\n\u003ctd\u003e20Hz-20KHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal to Noise Ratio 1W @ 4Ω\u003c\/td\u003e\n\u003ctd\u003e90dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Harmonic Distortion (THD)\u003c\/td\u003e\n\u003ctd\u003e0.1%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLow Level Input Range\u003c\/td\u003e\n\u003ctd\u003e200mV-5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSelectable X-Over\u003c\/td\u003e\n\u003ctd\u003eHPF\/LPF\/FULL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eX-Over Filter Range\u003c\/td\u003e\n\u003ctd\u003e40-500Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBass Boost Range\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInfrasonic Filter\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBluetooth Name\u003c\/td\u003e\n\u003ctd\u003eDS18 NXL-N4BT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVersion\u003c\/td\u003e\n\u003ctd\u003e5.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eServices\u003c\/td\u003e\n\u003ctd\u003eAudio Stream\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAudio Protocols\u003c\/td\u003e\n\u003ctd\u003eA2DP1.3.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAudio Codec Supported\u003c\/td\u003e\n\u003ctd\u003eSBC \/ AAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBitrate\u003c\/td\u003e\n\u003ctd\u003eSBC 328kbps \/ AAC 576kbps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBitrate Depth\u003c\/td\u003e\n\u003ctd\u003e24bits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmplifier Class\u003c\/td\u003e\n\u003ctd\u003eDigital\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmplifier Type\u003c\/td\u003e\n\u003ctd\u003eStereo Full Range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum Impedance\u003c\/td\u003e\n\u003ctd\u003e2 Ohms (Stereo \/ 4 Ohms Bridge)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLED Indicator\u003c\/td\u003e\n\u003ctd\u003ePower \/ Protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Input Size\u003c\/td\u003e\n\u003ctd\u003eWired 8Ga OFC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Size\u003c\/td\u003e\n\u003ctd\u003e25A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThermal Protection\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverload Protection\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWaterproof Rating\u003c\/td\u003e\n\u003ctd\u003eIP67\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e7.87\" \/ 200mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Wide\u003c\/td\u003e\n\u003ctd\u003e3.67\" \/ 93.4mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Height\u003c\/td\u003e\n\u003ctd\u003e1.56\" \/ 39.8mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeatsink Length\u003c\/td\u003e\n\u003ctd\u003e7.16\" \/ 182mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGross Single Unit Weight\u003c\/td\u003e\n\u003ctd\u003e2.8Lb \/ 1.3Kg\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-N4BT combines four-channel amplification with Bluetooth streaming, so you can connect a Bluetooth audio source without relying on a separate Bluetooth receiver. Its selectable HPF, LPF, and full-range settings let you choose a crossover mode to suit your system setup.\u003c\/p\u003e\n\u003cp\u003ePublished ratings distinguish between stereo operation at 2 or 4 ohms and bridged operation at 4 ohms. That makes it easier to compare the amplifier’s output with the speaker load you plan to use.\u003c\/p\u003e \u003ch2\u003eInstallation \u0026amp; Compatibility Notes\u003c\/h2\u003e\n\u003cp\u003eCheck the 7.87\" x 3.67\" x 1.56\" overall dimensions and mounting space before installation. The specifications list wired 8Ga OFC power input and a 25A fuse; follow the manufacturer instructions for installation.\u003c\/p\u003e\n\u003cp\u003eMatch speaker impedance and crossover settings to your installation. Keep connections protected from water. The IP67 rating does not permit intentional submersion.\u003c\/p\u003e \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eHow much power does the DS18 NXL-N4BT produce?\u003c\/h3\u003e\n\u003cp\u003eIts published ratings are 4 x 100W RMS at 4 ohms and 4 x 150W RMS at 2 ohms. The bridged rating is 2 x 300W RMS at 4 ohms.\u003c\/p\u003e \u003ch3\u003eWhat speaker impedance does it support?\u003c\/h3\u003e\n\u003cp\u003eThe listed minimum is 2 ohms in stereo and 4 ohms in bridge mode. Match the speaker load to the intended operating mode.\u003c\/p\u003e \u003ch3\u003eCan I stream audio to the amplifier?\u003c\/h3\u003e\n\u003cp\u003eYes. It has built-in Bluetooth 5.1 audio streaming and supports A2DP1.3.1 with SBC and AAC codecs.\u003c\/p\u003e \u003ch3\u003eWhich crossover settings are available?\u003c\/h3\u003e\n\u003cp\u003eSelect HPF, LPF, or full-range operation. The listed crossover filter range is 40–500Hz.\u003c\/p\u003e \u003ch3\u003eCan the amplifier be submerged?\u003c\/h3\u003e\n\u003cp\u003eIt has an IP67 waterproof rating, but the installation guidance does not permit intentional submersion. Protect connections from water.\u003c\/p\u003e \u003ch2\u003eExplore More\u003c\/h2\u003e\n\u003cp\u003eShop the DS18 NXL-N4BT 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 (opens in a new tab).\u003c\/p\u003e\n\u003c\/div\u003e","brand":"DS18","offers":[{"title":"Default Title","offer_id":67698586681572,"sku":"NXL-N4BT","price":449.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0842\/2522\/9028\/files\/upload-1792551765647.jpg?v=1792708541","url":"https:\/\/www.12voltoutlet.com\/products\/ds18-nxl-n4bt-marine-amplifier","provider":"12 Volt Outlet","version":"1.0","type":"link"}