JL Audio MediaMaster 105 (MM105) is a premium weatherproof marine source unit built as a true audio hub, not a chip-amp head unit. A rugged IP67-rated chassis, ultra-bright 3.5" full-color LCD, and big backlit controls give you clean helm ergonomics, while the electronics are focused entirely on feeding external amplifiers with clean signal across four independent audio zones.
Instead of an internal speaker amplifier, the MM105 delivers twelve channels of audiophile-grade, 4V RMS preamp outputs deployed as four configurable zones, each with its own subwoofer output, tone controls, and selectable low-pass crossover. Zero-clipping audio circuitry, per-zone volume limits, and NMEA 2000® connectivity make it a proper OEM-plus controller for serious multi-zone systems using JL marine amplifiers and speakers.
Key Features
Premium weatherproof marine source unit with 3.5" full-color LCD
No internal speaker amp – dedicated 12-channel, 4V RMS preamp outputs for external amplifiers
Four fully independent audio zones with customizable names and per-zone settings
Dedicated subwoofer output on every zone with selectable low-pass crossover (Off / 60 / 80 / 100 Hz)
Zero-clipping audio circuit design with self-limiting tone controls to help protect speakers at high levels
Global AM/FM tuner with RDS, HD Radio™ (where available), and DAB+ (Europe)
