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Amp Multi

Built for professional installation, Amp Multi provides unmatched multi-zone flexibility with GaN and PFFB technology to completely redefine what an 8-channel amplifier can do.

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Features

8 x 125W

4 zones

ProTune

2U rack mount

GaN

PFFB

Ethernet

WiFi 6

Apple AirPlay 2

Fanless

Back panel of Amp Multi showing 8 sets of speakers wired up for independent multi-zone control
Precision-built for professionals

Backed by thousands of hours of research and engineering, Amp Multi was built from the ground up to streamline professional installation at every stage. It’s designed to support your workflows and help you deliver bespoke audio experiences with precision and efficiency.

Multi-zone flexibility

Each output can be assigned to any zone, giving you complete flexibility in system design. Users can easily change audio sources and content, ensuring a seamless, consistent experience.

Innovation from the inside and out

Advanced GaN technology, Class D amplification, and post-filter feedback (PFFB) deliver exceptional audio quality with high efficiency. Its textured, thermally-optimized chassis enhances performance and durability all within a compact design built for the rack.

Setup made simple

ProTune

Manually tune each output

With ProTune, you can optimize the sound for the placement and room acoustics of any low-impedance passive speakers. This feature offers a comprehensive set of manual controls, including a 10-band parametric EQ and adjustable gain and delay offsets.

Seamless cues

Intuitive configuration

An audible chirp identifies each unit in the Sonos app—no PIN required. Front and rear LEDs indicate setup mode for a more seamless experience.

Real-time LEDs

Intelligent indicators

Speaker outputs automatically detect when a speaker is connected, while status LEDs provide real-time feedback during setup. Ambient light sensing adjusts brightness to the environment, and all indicators are configurable in the app.

Amp Multi surrounded by an array of Sonance architectural speakers, including in-ceiling and in-wall

Optimize Sonos Speakers

Power more speakers

Select the feature Optimize Sonos Speakers in the Sonos app to unlock the ability to power up to three Sonos Architectural speakers per output (24 total). The custom DSP optimizes the EQ, while limiter control enables even and consistent volume dynamics throughout the frequency range.

Closeup of Amp Multi back panel with speaker outputs, subwoofer output, ethernet, and analog line in

Ethernet or WiFi

Flexible connectivity

Connect via wired Ethernet or WiFi 6 and stream up to four audio sources simultaneously using the Sonos app, Apple AirPlay 2, or Spotify Connect. Analog and USB inputs provide additional flexibility, and the subwoofer output is freely assignable to any zone.

Sonos app

Easy app control

Control everything from the Sonos app—zones, sources, output assignments, and status monitoring—all in one place.

Learn more

Ready to rack

Designed specifically for Amp Multi, the 2U Rack Mount streamlines installations by reducing wasted space, maximizing airflow, and keeping cable management clean.

Three Sonos Amp Multis installed in an open rack using the Amp Multi Rack Mount.
Built to breathe

The Rack Mount creates space above and below each unit to support airflow in a clean, 2U configuration.

Streamlined install

With its flat back design, Amp Multi slides easily onto the Rack Mount. Installation is satisfyingly simple.

Space-saving design

Amp Multi eliminates the need for vent panels between rack units and reduces the number of screws required for installation—saving time, rack space, and hardware.

Looks right at home

Whether on a shelf, credenza, or mounted to the wall, Amp Multi’s compact design and refined finish make it an elegant addition to any space. It looks just as polished in plain sight as it does tucked into a rack.

A home kitchen and living room with in-ceiling architectural speakers and Sonos products
Works with your devices

Partner integrations offer seamless control of your Sonos system alongside all your compatible smart home devices.

Responsible by design

From major technological innovations to thoughtful details, Amp Multi is engineered with sustainability at every level.

Sustainability at Sonos
Product packaging assembly
Recycled plastics

Amp Multi features 47% recycled plastic—helping reduce waste and give materials a second life.

Energy efficient

GaN technology helps Amp Multi consume less than 5.5W at idle to reduce heat and improve reliability, while software enhancements further reduce energy use during playback and standby.

Eco packaging

The exterior and interior packaging is 100% recyclable and crafted using paper certified by the Forest Stewardship Council®.

Choose the right component for your system

Overhead view of Sonos Amp Multi
Amp Multi

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Delivers four times the coverage as Amp

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Amp

$799

Powers your passive speakers

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Port

$499

Connects to your amplified stereo or receiver

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Tech Specs

Speaker Outputs

8 amplified outputs each independently configurable for stereo or mono

FTC Power Output Rating

125 W per channel @ 8Ω (all channels driven)

Minimum Impedance

2.67Ω with Sonos Architectural speakers

Damping Factor

>400 (ref. 8 ohms, 20 Hz to 1 kHz)

Amplifier Technology

Class D with GaN and PFFB

Total Harmonic Distortion

0.005% at 2.83Vrms-15Vrms

Frequency Response

±0.5 dB, 15 Hz - 20 kHz

Channel Separation (Crosstalk)

-100dB at 1 kHz 2.83Vrms
-80dB at 10 kHz 2.83Vrms

Signal-to-Noise Ratio

114dB ref 125W into 8-Ohm

ProTune

10-band parametric EQ with ±15dB gain, Q, and frequency control.
Option for high-shelf, low-shelf, and bell filter types.
Gain trim: -15 - +5 dB
Delay: 0 - 50ms
Highpass: 15-100Hz

All available on per channel basis

Optimize Sonos Speakers

When selected in the Sonos app, Optimize Sonos Speakers allows Amp Multi to recognize Sonos Architectural speakers, then applies custom tuning and DSP to provide more robust sound with a more even frequency response, optimizing system performance and ensuring stable operation.

FAQ

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