The JL Audio MediaMaster® 50 (MM50) is a compact, weatherproof marine source unit designed for real-world helm installs on boats, pontoons and other outdoor applications. It combines a built-in 4-channel amplifier (25W x 4 @ 4Ω) with 6 channels of 4V preamp outputs for multi-zone systems, plus NMEA 2000® connectivity for network control.

Key features

• IP66-rated weatherproof chassis and display
• Built-in amplifier: 25W x 4 RMS @ 4Ω (100W total)
• Multi-zone audio: Zone 1 & Zone 2 + dedicated subwoofer zone (preamp outputs)
• Source options: AM/FM tuner with RDS, Bluetooth® streaming, USB audio playback, AUX input
• NMEA 2000® Micro-C network interface (LEN 1) for compatible MFD/remote integration
• USB 2.0 supports MP3/WAV/WMA and provides up to 2.1A charging output

Verified specifications (MM50)

• Operating voltage: 14.4V DC (10.4–15.8V)
• Current draw / fuse: 15A max / 100mA standby / 15A
• Bluetooth®: A2DP v1.2, AVRCP v1.4; v2.1 + EDR; range up to 35 ft (11 m)
• Preamp outputs: Zones 1&2: two stereo pairs (4V RMS); Sub: one mono pair (4V RMS)
• High-pass crossover (Zones 1&2): Off / 60 / 80 / 100 / 150 Hz
• Dimensions (W x H x D): 4.65 x 3.74 x 3.15 in (118 x 95 x 80 mm)

Compatible accessories (sold separately)

• JL Audio MMR-20-BE wired remote controller
• JL Audio MMR-10W wireless remote controller
• JL Audio MMR-40 NMEA 2000® network controller

Supplier note: Sourced via Recambios Marinos (Recmar) and supplied as a genuine JL Audio marine product. Confirm ratings, wiring requirements, cutout dimensions and system compatibility before ordering.