Polk Ultramarine offers a full range of high-end audio features in a sleek and versatile package with our two-piece modular source unit.

UM2A
- Waterproof two-piece modular source unit
- 200 watts maximum power
- App Ready – Control main functions from most Bluetooth®-enabled devices with the Polk Ultramarine App
- Bluetooth streaming audio (A2DP) and control (AVRCP)
- 2.8-inch daylight readable TFT display with protective glass lens
- Low-profile flush-mount commander with detachable trim ring

NMEA2KGTWY
- Standalone gateway box
- Allows stereos to communicate with GPS and chart plotting systems
UM2A
- Waterproof two-piece modular source unit
- 200 watts maximum power
- App Ready – Control main functions from most Bluetooth®-enabled devices with the Polk Ultramarine App
- Bluetooth streaming audio (A2DP) and control (AVRCP)
- 2.8-inch daylight readable TFT display with protective glass lens
- Low-profile flush-mount commander with detachable trim ring
- Four-channel amplified audio
- Four-zone volume control when used with UM2DSP
- Digital AM/FM tuner with 30 station presets (18 FM/12AM)
- SiriusXM radio ready with 18 SAT station presets (tuner and subscription required)
- USB supports MP3/WMA playback
- 12 volt DC power
- Non-volatile memory
- Corrosion and UV resistant
- Preset EQ settings (user, flat, pop, classical, and rock)
- Rear auxiliary line-level audio input (RCA)
- Front and rear four-channel line-level audio output (RCA)
- Wired remote control ready (PRC100BC, PRC200BC sold separately)
- Conformal coated PCB