This device is easily controlled with the MusicCast app .

The UBIQUITI UniFi UPL-Amp is a compact yet powerful network audio amplifier with HDMI eARC that delivers high-quality audio to your home or business space.

This single-zone subwoofer features two Class D amplifiers and automatic sound calibration that will automatically adjust the perfect balance between your SUB and other Sonos components for the highest sound quality.