Class-D digital amplifier. Powers speakers with 55 W per channel.
Audio line-in. Auto-detecting RCA.
Subwoofer output with 80 Hz crossover.
Radiant cooling. Operates silently so all you hear is the music. Amplifier is kept cool by the aluminum casing, not a noisy fan.
Speaker connections. Spring binding posts.
Adjustable bass and treble controls to optimize sound performance. Adjust volume by individual room or by groups of rooms.
Dimensions - H x W x D 3.50 x 7.28 x 8.15 in. (89 x 185 x 207 mm).
Weight 5.1 lbs. (2.3 kg).
Product finish Anodized precision machined extrusion aluminum case.
Side panel buttons & lights Volume and Play/Pause buttons. LED indicates Sonos component status and mute status.
Power Supply 100-120/220-240 V, 50-60 Hz AC universal input.
WiFi, not Bluetooth Connects to your home WiFi network with any 802.11b/g, 2.4 GHz broadcast-capable router for uninterrupted wireless streaming.
Ethernet ports Two 10/100 Mbps Ethernet ports to connect to a wired home network and bring standard Internet connectivity to other devices.
System requirements Passive (non-powered, non-amplified) speakers. Broadband Internet in your home.
