Marine Source Unit with Full-Color LCD Display The CMM-30 is a weatherproof, marine source unit with advanced audio features and a multi-source, multi-zone design for outstanding audio performance. Equipped with a wide range of audio source options, the CMM-30 features a global, digital AM/FM tuner with built-in NOAA weather radio (US only), SiriusXM-Ready® (tuner, antenna, and subscription sold separately), Bluetooth® audio streaming, a USB 2.0 input for playback from your USB storage device (with 2.1A charging) and an analog auxiliary input, all designed to deliver non-stop sound, no matter how choppy the seas may get. A rugged, weatherproof (IP66 rated) chassis houses a 3-inch (76 mm) full-color, LCD display with dimmable control for nighttime viewing. When in motion, you'll appreciate the large controls and uncluttered user interface with big text and backlit buttons. Ultra-versatile zone controls and audio features include a rock-solid, onboard amplifier, capable of powering your speakers with 100 watts (25W RMS x 4 @ 4 ohms) of high-fidelity sound to two main zones, as well as eight channels of top-quality preamp outputs (3.5V RMS), with selectable Zone 4 or subwoofer functionality. Customize your sound using the built-in 5-band equalizer or with onboard the tone controls (Bass/Mid/Treble). Built to exceed industry standards for salt fog/UV exposure and vibration (ASTM B117/D4329) IP66 rated design and construction 3-inch (76 mm) full-color LCD display with dim control Intuitive interface with large text Large, single rotary control and backlit buttons Global, digital AM/FM tuner, plus NOAA weather radio (US only) SiriusXM-Ready® (tuner, antenna, and subscription sold separately) Save up to 18 of your favorite tuner stations/channels Wireless Bluetooth® audio streaming USB 2.0 input with 2.1A charging output One stereo pair of auxiliary inputs (2V RMS) NMEA 2000® Certified - MFD (Multi-Function Display) control functionality via existing vessel networks. Compatible MFDs include Garmin, Lowrance and Simrad (Refer to MFD manufacturer for device compatibility info.) Built-in Amplifier: 4 x 25W RMS at 4 Ohms 8-channel preamp (3.5V RMS) outputs (Zone 4 or subwoofer) Customizable 5-band equalizer or built-in tone controls (Bass/Mid/Treble) *****Salt & Sun Certified This product meets or exceeds the following: ASTM B117 (Salt Fog Exposure) ASTM D4329 (UV Exposure) 3.0G Vibration Resistance Coated circuit boards resist corrosion in marine environments. Designed for very low power consumption when turned off. Water resistance varies by model