www.fusionentertainment.com Recently launched as a compact entry-level unit, Fusion’s RA55 has an AM-FM radio, RCA Aux input, USB connection and Bluetooth connectivity. There is no NMEA control. It takes up very little space, and the control head is waterproof to IPX5 (which means it can withstand a 6.3mm jet of water for 3 minutes). You can control two separate zones, with a nice interface (press and scroll to adjust the volume on each zone), which can be linked if required.
The sound was good, with a nice tone and plenty of volume and power, and the interface was intuitive, with a rotary selector and easy-touse button controls.
This would make for a good installation on a boat with limited space thanks to the small faceplate size and the minimal depth taken up by the body of the unit.