Speaker Outputs 8 amplified outputs each independently configurable for stereo or mono
FTC Power Output Rating 125 W per channel @ 8 Ohms (all channels driven)
Minimum Impedance 2.67O with Sonos Architectural speakers Analog Audio Input 2 x RCA inputs -10dB (into any zone) USB-C
Analog Audio Input 44.1 kHz / 16 bit (stereo into any zone) Requires Sonos Line-In Adapter
Subwoofer Connections 1 x RCA output -10dB (configurable to output from one zone), and 1x Sonos Sub per zone
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 15 Hz - 20 kHz, ±0.5 dB
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
CPU Quad Core 4xA55 1.9GHz
ProTune Signal Processing 10-band parametric EQ with ±15dB gain, Q, and frequency control. Option for high-shelf, low-shelf, and bell filter types. Gain trim: -15 to +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.
Power Auto-switching 100-240V 50/60 Hz 10A AC universal input
Power Consumption 5.4 W (idle, with WiFi disabled) 180 W (all channels driven at 1/8 output power, 8 Ohms)
Operating Temperature 32° to 95° F (0 to 35° C) Humidity Range Non condensing 10%-85%
LEDs Front: Device status Rear: Device status, output status (x8), RJ45 status light
Box Contents:
Amp Multi
Set of 8 banana plugs
Power cord
Legal/warranty documentation
Product Dimensions (W x H X D) 17.2 x 2.52 x 10.44 in / 436.8 x 64.5 x 265.2 mm
Wireless Networking Interface Compatible with WiFi 6. Connect to Wi-Fi with any 802.11a/b/g/n/ac/ax 2.4 GHz/5 GHz broadcast-capable router
Direct Streaming Formats Apple AirPlay 2, Spotify Direct Control, and more. For a complete list, please visit: support.sonos.com/en-us/article/stream-audio-to-sonos-from-another-app
Integrated Content Streaming Amazon Music, Apple Music, Cloud Cover Music, Mood Media, Sonos Radio, Soundtrack Your Brand, Spotify, and many more. For a complete list, please visit: support.sonos.com/services
Accessories 2U Rack Mount (sold seperately)
Features:
Up to 4 zones
8 x 125W per output at 8 Ohms
GaN-powered with PFFB technology
Convection cooled
ProTune manual EQ, delay, and gain
2U Rack Mount (sold separately)
Ethernet and WiFi 6 connectivity
Supports Apple AirPlay 2 and Spotify Connect
Overview:
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.
Sonos Amp Multi is a four-zone, eight-output amplifier designed to streamline installations and deliver high-quality audio. Assign each of the eight 125W channels to any zone.
It uses GaN technology for significantly greater power efficiency, consumes 5.4W at idle (with WiFi disabled) which minimizes heat generation, improves reliability, and eliminates the need for fans. Post-filter feedback (PFFB) enables real-time signal correction, ensuring exceptional audio clarity, precision, and control across different speaker loads.
The Rack Mount (sold separately) has been designed specifically for Amp Multi, creating space above and below each unit to support airflow in a 2U configuration. Amp Multi’s flat back makes it easy to stand upright so the Rack Mount slides on easily. Secure with just four screws for a satisfyingly simple installation. Clear status LEDs provide immediate feedback, automatically adjusting to the room’s lighting for optimal visibility.
The Sonos app gives you complete control over everthing: zones, sources, output assignments, light indicators, and status monitoring. Setup is easier than ever thanks to an audible chirp that identifies each unit — no PIN required. Stream up to four audio sources simultaneously from the Sonos app, Apple Airplay 2, or Spotify Connect, with connection from wired Ethernet or WiFi 6. Amp Multi provides optimization profiles for Sonos Architectural speakers as well as ProTune, which includes a full suite of manual controls to optimize each output for each space.
Amp Multi offers true multi-zone flexibility, empowering integrators to deliver bespoke audio experiences.
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