The Sonos Amp is a Class-D amplifier that powers any passive speakers with up to 125 watts per channel of clean, authoritative audio, bringing Sonos multi-room streaming capability to installations with custom or legacy speaker systems. It connects via HDMI ARC to link to a TV, supports Apple AirPlay 2, and works with Alexa and Google Assistant for voice control. Designed for custom home installations, boardrooms, restaurants, and retail spaces, the Sonos Amp can be rack-mounted and controlled centrally. It's the backbone of any professional audio installation built on the Sonos platform.