Sonos Amp Multi 8-Channel, 4-Zone Streaming Amplifier fills your whole home with rich sound from one sleek component. Eight powerful channels drive the speakers in your ceilings and walls, so the kitchen, bedroom, living room and den can each play their own music or share the same song. Thousands of hours of research and development go into every detail, for sound that feels effortless and natural in each room. Then the Sonos app puts every zone at your fingertips, with your favorite streaming services ready to play.
Specifications
â–¸ Amplifier
| Amplifier Type |
Class D with GaN and post-filter feedback (PFFB) |
| Output Channels |
8 |
| Power Output |
125 W per channel @ 8 ohms (all channels driven) |
| Minimum Impedance |
2.67 ohms (Sonos Architectural speakers) |
| Zones |
Up to 4 |
| Signal-to-Noise Ratio |
114 dB (ref. 125 W into 8 ohms) |
| Total Harmonic Distortion |
0.005% |
| Frequency Response |
15 Hz to 20 kHz (±0.5 dB) |
| Channel Separation |
-100 dB at 1 kHz |
| Damping Factor |
Over 400 (ref. 8 ohms, 20 Hz to 1 kHz) |
â–¸ ProTune (per output)
| Parametric EQ |
10-band |
| Gain Trim |
-15 to +5 dB (subwoofer -15 to +3 dB) |
| Time Alignment |
0 to 50 ms |
| High-Pass Filter |
15 to 100 Hz |
â–¸ Inputs and Outputs
| Speaker Outputs |
8 (banana plug or 10 to 18 AWG wire) |
| Analog Inputs |
2 x RCA (-10 dB, into any zone) |
| USB-C Analog Input |
44.1 kHz / 16-bit stereo (Sonos Line-In Adapter, sold separately) |
| Subwoofer Output |
1 x RCA (-10 dB, from one zone) |
| Sonos Sub Support |
1 per zone |
â–¸ Streaming and Connectivity
| Wi-Fi |
Wi-Fi 6 (802.11a/b/g/n/ac/ax, 2.4 or 5 GHz) |
| Ethernet |
100BaseTX, RJ45 |
| Apple AirPlay 2 |
Yes (iOS 11.4 and later) |
| Spotify Direct Control |
Yes |
| Streaming Services |
Amazon Music, Apple Music, Spotify, Sonos Radio and more |
| Processor |
Quad-core 1.9 GHz |
| Control |
Sonos app |
â–¸ Power
| Power Supply |
Auto-switching 100-240V, 50/60 Hz |
| Idle Power |
5.4 W |
| Power Consumption |
180 W (all channels at 1/8 power into 8 ohms) |
â–¸ Design and Environment
| Finish |
Black, matte |
| Status Lights |
Front device status; rear device, output and Ethernet status |
| Rack Height |
1.5U (2U with the Amp Multi Rack Mount) |
| Operating Temperature |
32° to 95° F |
| Humidity |
10% to 85% non-condensing |
| Recycled Plastic |
47% |
â–¸ Dimensions and Weight
| Dimensions (W x H x D) |
17.2 x 2.52 x 10.44 inches |
| With Rack Mount (W x H) |
19.01 x 3.47 inches |
| Net Weight |
11.2 lb |
| Shipping Weight |
16.56 lb |
â–¸ Requirements and In the Box
| Requirements |
Passive speakers with speaker wire, internet connection, latest Sonos app |
| In the Box |
Amp Multi, 8 Sonos banana plugs, ferrite clamp, AC power cord, quickstart guide, legal and warranty information |
| Sold Separately |
Amp Multi Rack Mount, Sonos Line-In Adapter |
Eight Channels, Four Zones
Eight amplified outputs deliver 125 watts each into 8 ohms, with all channels driven. Any output can join any zone, so the system can play one space or up to four zones at once, and two outputs in a zone pair as stereo.
Clean, Powerful Sound
Class D amplification built on GaN (gallium nitride) technology drives every channel with high efficiency. Response stays within half a decibel from 15 Hz to 20 kHz for clean, detailed music.
ProTune Per-Speaker Tuning
ProTune lets a trained installer tune each output to its speakers, their placement and the room. A parametric equalizer with 10 bands, gain trim, time alignment up to 50 milliseconds and a high-pass filter from 15 to 100 Hz are available on every channel.
Easy Setup and App Control
An audible chirp identifies each unit, and front and rear status lights show the setup mode. Zones, sources, output assignments and system status are all managed in the Sonos app.
Ready to Rack
The Amp Multi Rack Mount (2U), sold separately, is designed specifically for this amplifier. Units slide onto the mount by their flat backs, with space above and below each one for airflow and tidy cable management.
Built to Stay Cool
A textured, thermally optimized chassis with a distinctive top grille spreads heat away from the electronics to support performance and durability.
Looks Right at Home
At 2.52 inches tall, the matte black Amp Multi suits a shelf, a credenza or a wall in any room of the home.
Stream Your Favorite Music
Amazon Music, Apple Music, Spotify, Sonos Radio and more stream directly in the Sonos app. AirPlay 2 and Spotify Direct Control are supported over Wi-Fi 6 or wired Ethernet, with an internet connection required.
Inputs and Subwoofer Output
Two RCA analog inputs bring a wired audio source into any zone, and a USB-C analog input adds one more with the Sonos Line-In Adapter, sold separately. An RCA subwoofer output and support for one Sonos Sub per zone add deep bass.
Works With Your Smart Home
Partner integrations let you control the Sonos system alongside your compatible smart home devices.
Efficient and Responsibly Made
GaN technology keeps idle power at 5.4 watts, and software features save energy during playback and standby. It is made with 47% recycled plastic, and the packaging is 100% recyclable with FSC-certified paper.
Sonos Amp Multi FAQ
â–¸ How many zones does the Sonos Amp Multi support?
Up to four. Its eight outputs can all play in one zone or be split across up to four zones, and two outputs in the same zone form a stereo pair by default.
â–¸ How many speakers can the Sonos Amp Multi power?
Its eight outputs, rated at 125 W per channel at 8 ohms, drive four stereo pairs or up to eight individual speakers. Sonos recommends speakers rated for at least 125 watts at 8 ohms or 200 watts at 4 ohms, and the amplifier handles loads down to 2.67 ohms with Sonos Architectural speakers.
â–¸ Can the Sonos Amp Multi be rack mounted?
Yes. It is 1.5U tall on its own and fits a 2U space on its rack mount (sold separately). On the mount, each unit slides in by its flat back and has room to breathe.
â–¸ Can I add a subwoofer to the Sonos Amp Multi?
Yes. An RCA subwoofer output can play from one zone, and each zone can also add one Sonos Sub, such as the Sub 4 or Sub Mini.
â–¸ What are the dimensions of the Sonos Amp Multi?
It measures 17.2 inches wide, 2.52 inches tall and 10.44 inches deep and weighs 11.2 pounds. With the 2U Rack Mount it is 19.01 inches wide and 3.47 inches tall, and the shipping weight is 16.56 pounds.
â–¸ What speakers work with the Sonos Amp Multi?
It powers passive speakers connected with speaker wire, including Sonos Architectural speakers. Connections use the eight included banana plugs or 10 to 18 AWG bare wire.
â–¸ Does the Sonos Amp Multi support AirPlay 2?
Yes. AirPlay 2 works from iPhone and iPad on iOS 11.4 and later, alongside Spotify Direct Control and the streaming services in the Sonos app.
â–¸ What comes in the box with the Sonos Amp Multi?
The box includes the Amp Multi, eight Sonos banana plugs, a ferrite clamp, an AC power cord, a quickstart guide printed on the box, and legal and warranty information.
