{"product_id":"jl-audio-mediamaster-source-unit-010-03365-00","title":"JL Audio MediaMaster MM55 Marine 3-Zone Source Unit 010-03365-00 (99975)","description":"\u003cp\u003e\u003cstrong\u003eJL Audio MediaMaster MM55\u003c\/strong\u003e is a compact, weatherproof marine and powersports digital media receiver built for real open-air duty. A full-color 2.8\" LCD, three audio zones, and intuitive rotary controls give you helm-friendly operation while the chassis, electronics, and user interface are engineered specifically for boats, UTVs, and other 12-volt platforms.\u003c\/p\u003e\n\u003cp\u003eBehind the faceplate, the MM55 uses a Class-D 25W x 4 amplifier (2Ω-stable) to drive primary zones directly, plus nine 4V preamp outputs with selectable fixed\/relative modes to feed JL amplifiers in larger systems. Integrated high-\/low-pass crossovers, per-zone tone and volume limits, and IP67-rated construction, combined with AM\/FM\/DAB+, Bluetooth with aptX, USB audio, AUX, and NMEA 2000® connectivity, make it a true OEM-plus system controller rather than a generic head unit.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWeatherproof marine\/powersports digital media receiver (no CD mechanism)\u003c\/li\u003e\n\u003cli\u003eBuilt-in Class-D amplifier: 25W RMS x 4 @ 4Ω (2Ω-stable)\u003c\/li\u003e\n\u003cli\u003eThree independent audio zones, each with its own subwoofer output and controls\u003c\/li\u003e\n\u003cli\u003eNine channels of 4V preamp outputs (front\/rear\/sub per zone)\u003c\/li\u003e\n\u003cli\u003e2.8\" full-color TFT LCD with day\/night brightness controls for screen and keys\u003c\/li\u003e\n\u003cli\u003eAM\/FM\/DAB+ tuner with RDS and up to 18 stored presets\u003c\/li\u003e\n\u003cli\u003eBluetooth® audio streaming (A2DP\/AVRCP) with SBC and aptX™ codec support\u003c\/li\u003e\n\u003cli\u003eRear USB 2.0 input for thumb drives and digital audio (with 1A device charging)\u003c\/li\u003e\n\u003cli\u003eRear stereo RCA AUX input with selectable input sensitivity\u003c\/li\u003e\n\u003cli\u003eNMEA 2000® network-ready for integration with compatible marine displays and JL remotes\u003c\/li\u003e\n\u003cli\u003eIP67-rated construction, designed for real-world marine and powersports environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMediaMaster MM55\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e010-03365-00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDisplay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.8\" TFT LCD, 320 x 240 resolution, adjustable day\/night modes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBuilt-In Amplifier\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e25W RMS x 4 @ 4Ω (Class-D, 2Ω-stable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAudio Zones\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3 zones with dedicated subwoofer outputs and per-zone level\/tone\/crossovers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePreamp Outputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e(Zone 1\/2\/3) front + rear + mono sub RCA, up to 4V RMS; relative, absolute, or fixed modes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSources\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAM\/FM\/DAB+ tuner, Bluetooth audio, USB audio, analog AUX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePhysical Connections\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAntenna (Motorola), RCA AUX, Zone 1\/2\/3 preouts (L\/R\/Sub), USB, NMEA 2000® Micro-C, wired remote, power\/speaker harness\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBluetooth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ev2.1 + EDR, A2DP v1.2 \/ AVRCP v1.4, up to ~35 ft (11 m) range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUSB\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUSB 2.0, up to 1A charging, supports MP3\/MP4\/WAV\/AAC\/M4A\/M4B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 – 16 VDC (14.4 V nominal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Current Draw \/ Fuse\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e15A max, 100 mA standby \/ 15A fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTuner\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFM with RDS, AM, DAB+; 18 total presets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWater Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIP67 (marine-grade weather resistance)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUnit Dimensions (W x H x D)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.65\" x 3.74\" x 3.66\" (118 mm x 95 mm x 93 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting Hole (W x H)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.74\" x 3.15\" (95 mm x 80 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eIdeal Applications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePremium multi-zone marine audio on center consoles, pontoons, towboats, and cruisers\u003c\/li\u003e\n\u003cli\u003eSide-by-sides, UTVs, and other powersports builds needing robust weatherized controls\u003c\/li\u003e\n\u003cli\u003eCustom OEM-plus 12-volt systems where a compact, high-control source unit is required\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eAmplifier\/Focus Matching\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUse the built-in 25W x 4 channels for primary cabin or cockpit speakers in smaller systems.\u003c\/li\u003e\n\u003cli\u003eFeed JL Audio marine amplifiers from the 4V preouts to power multiple zones, towers, and subwoofers.\u003c\/li\u003e\n\u003cli\u003ePair with JL Audio M3\/M6 speakers and JL marine subwoofers for consistent voicing across all zones.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eWhat’s Included\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eJL Audio MediaMaster MM55 marine source unit (010-03365-00, with 15A fuse)\u003c\/li\u003e\n\u003cli\u003eTrim ring (installed) and self-adhesive mounting gasket\u003c\/li\u003e\n\u003cli\u003ePower harness and speaker harness\u003c\/li\u003e\n\u003cli\u003eMounting hardware and cutout template\u003c\/li\u003e\n\u003cli\u003eOwner’s manual and warranty information\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eWhy Buy From MCOR Automotive\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAuthorized JL Audio dealer with direct access to current spec and support information\u003c\/li\u003e\n\u003cli\u003eReal-world marine and powersports system design experience\u003c\/li\u003e\n\u003cli\u003eApplication-focused guidance on zone layout, amplifier selection, and control strategy\u003c\/li\u003e\n\u003cli\u003e20+ years in high-end 12-volt OEM-plus integration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- SEO Title (≤60 chars) --\u003e\n\u003cp\u003eJL Audio MM55 25Wx4 Marine Source Unit 010-03365-00\u003c\/p\u003e\n\u003c!-- SEO Description (≤170 chars) --\u003e\n\u003cp\u003eJL Audio MM55 marine digital media receiver with 25W x4 built-in amp, 3 audio zones, 4V preouts, Bluetooth, USB, IP67 design and NMEA 2000® integration for boats and powersports.\u003c\/p\u003e","brand":"JL Audio","offers":[{"title":"Default Title","offer_id":51808022135063,"sku":"010-03365-00","price":429.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/3185\/7431\/files\/g13699975-F.webp?v=1768533518","url":"https:\/\/shop.mcorautomotive.com\/products\/jl-audio-mediamaster-source-unit-010-03365-00","provider":"shop.mcorautomotive.com","version":"1.0","type":"link"}