AUDIO
Amplifier: Class-D digital amplifier
Amplifier power: 125W/Ch into 8 ohms
Speaker connections: Banana plugs (2)
Line-in sources supported: Audio device with analog RCA output or optical output (optical adapter required). TV device with HDMI ARC or optical output (optical adapter required)..
Subwoofer output: Auto-detecting RCA type, adjustable crossover

NETWORKING
Wireless connectivity:
Using Sonos S2: Connects to WiFi network with any 802.11b/g/n 2.4 GHz broadcast-capable router.
Using Sonos S1: Connects to WiFi network with any 802.11b/g 2.4 GHz broadcast-capable router. 802.11n only network configurations are not supported —you can either change the router settings to 802.11b/g/n or connect a Sonos product to your router.
Ethernet ports: Dual Ethernet ports can connect Amp to a wired home network and allow for connection of additional Sonos products.
System requirements: Passive speakers with speaker wire, broadband internet, and Sonos app.

GENERAL
Dimensions (H x W x D): 64 x 217 x 217 mm
Weight: 2.1 kg
Status indicator: Displays the product's connection to WiFi, indicates when the volume is muted, and signals errors.
Operating temperature: 32°F to 104° F (0° C to 40° C)
Storage temperature: -4°F to 122° F (-20° C to 50° C)
Controls: Touch interface with volume up/down, previous/next song and play/pause.
Power supply:
Auto-switching 100 - 240V ~ 50-60 Hz
2.5A AC universal input