( 01 / 01 )Sonos AMP 250W 2.1Wireless Amplifier
Sonos Amp is a Class-D stereo amplifier for passive speakers, with HDMI ARC TV connection, line-in, subwoofer out, and full Sonos multi-room streaming (including AirPlay 2).
Key Features
- Class-D digital amplifier: 125 W per channel continuous average power (8 Ω, both channels driven)
- Peak output power 250 W/channel (4 Ω); peak output current 31 A (1 Ω, 1 ms)
- HDMI ARC for TV audio; line-level analogue RCA or optical digital line-in (optical adapter required)
- Auto-detecting RCA subwoofer output with adjustable crossover (50 to 110 Hz)
- Stable down to 2 Ω dynamic loads; custom banana plugs accept 10-18 AWG speaker wire
- Wi-Fi streaming with Sonos app; AirPlay 2; dual Ethernet ports; SonosNet 2.0 extender
- Touch controls for volume, play/pause and previous/next track (music)
Overview
Sonos Amp powers up to four speakers on a single amplifier and integrates TV, turntable (via suitable phono stage / line-level source), and the Sonos music platform. It is designed for rack, shelf, or wall-adjacent placement and expands wirelessly with other Sonos speakers.
Specifications
Figures below are from the official Sonos Amp Fact Sheet (Sonos CDN).
Audio amplifier
Source: Sonos Amp Fact Sheet - Audio / Amplifier block.
| Amplifier | Class-D digital amplifier |
|---|---|
| Continuous average power | 125 W/channel (8 Ω, both channels driven) |
| Peak output power | 250 W/channel (4 Ω) |
| Peak output current | 31 A (1 Ω, 1 ms) |
| Signal-to-noise ratio | 114 dB (A-weighted, digital input) |
| Total harmonic distortion | < 0.0015% (20 Hz-20 kHz, 1 W, 8 Ω, AES17 filter) |
| Output noise | < 60 μV (A-weighted) |
| Power amplifier features | Direct digital input (no D/A conversion); high-current discrete output stage; stable down to 2 Ω dynamic loads; microprocessor-based protection; power factor correction |
| Speaker connections | Custom banana plugs accept 10-18 AWG speaker wire (2) |
Inputs, outputs and sources
Source: same Fact Sheet - Line-In / Subwoofer / Music Access.
| Line-in sources supported | Audio device with line-level analogue RCA output or optical digital output (optical adapter required); TV with HDMI ARC or optical output (optical adapter required) |
|---|---|
| Subwoofer output | Auto-detecting RCA type with adjustable crossover (50 to 110 Hz) |
| Internet radio supported | Streaming MP3, HLS/AAC, WMA |
| Playlists supported | Napster, iTunes, WinAmp, and Windows Media Player (.m3u, .pls, .wpl) |
| System requirements | Passive speakers with speaker wire, broadband internet and Sonos app |
Networking and controls
Source: same Fact Sheet - Power and Networking / Touch Controls.
| Wireless connectivity | Home Wi-Fi with any 802.11b/g/n router; 802.11n-only network configurations not supported |
|---|---|
| SonosNet extender | Extends and enhances SonosNet 2.0 |
| Ethernet ports | Dual Ethernet ports (wired network + daisy-chain additional Sonos players) |
| Touch controls | Volume up/down, previous/next track (music only), play/pause; LED status light |
Physical
Source: same Fact Sheet - Physical.
| Dimensions (W × D × H) | 217 × 217 × 64 mm |
|---|---|
| Rack fit | Standard rack fit |
| Product finish | Matte black with black and silver banana plugs |
| Weight | 2.1 kg |
Datasheets
Public manufacturer documents (link only - this does not add a downloads module):
