
Sonos Amp Multi
Sonos Amp Multi - 8 x 125W of Power / Upto four zones
The Sonos Amp Multi is built for professional installation, providing unmatched multi-zone flexibility with GaN and PFFB technology to completely redefine what an 8-channel amplifier can do.
Features:
- Eight channels of high-performance amplification in a single compact chassis
- Configurable for up to four independent audio zones
- 125 watts per channel at 8 ohms for confident, controlled sound
- Advanced Gallium Nitride amplifier technology for efficiency and thermal stability
- ProTune DSP with per-channel EQ, gain, delay and filtering
- Optimised DSP profiles for Sonos Architectural speakers
- Native Sonos streaming with intuitive app-based control
- Ethernet and Wi-Fi connectivity for flexible system design
- Silent, fanless operation suitable for luxury residential environments
- 1.5U rack-mount design with optional dedicated rack accessories
Developed to meet the evolving demands of high-end residential and commercial environments, Sonos Amp Multi redefines how distributed audio is delivered. With eight channels of amplification configurable across multiple zones, it enables integrators to design clean, centralised systems that power everything from open-plan living spaces and media rooms to outdoor areas and guest suites.
At its core, Amp Multi combines high-efficiency Gallium Nitride amplification with advanced DSP, ensuring consistent, refined performance even in complex speaker layouts. Each channel can be individually tuned using ProTune, allowing precise optimisation for room acoustics, speaker placement and listening preferences.
Designed with installation excellence in mind, the slim 1.5U chassis, quiet fanless operation and thoughtful rear-panel layout support clean, serviceable rack builds. Seamless integration with the Sonos platform ensures intuitive control for homeowners, while providing installers with powerful configuration tools that simplify commissioning and future system expansion.
The Amp Multi delivers 8 x 125W of power across up to four zones, leveraging advanced GaN technology and post-filter feedback (PFFB) for greater efficiency, clarity, and control.
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.
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.
Advanced GaN technology, Class D amplification, and post-filter feedback (PFFB) deliver exceptional audio quality with high efficiency. Its textured, thermally-optimised chassis enhances performance and durability all within a compact design built for the rack.
Designed specifically for Amp Multi, the 2U Rack Mount streamlines installations by reducing wasted space, maximising airflow, and keeping cable management clean.
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.
Partner integrations offer seamless control of your Sonos system alongside all your compatible smart home devices.
Specifications:
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Speaker Outputs
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8 amplified outputs each independently configurable for stereo or mono |
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Power
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125 W per channel @ 8Ω (all channels driven) |
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Minimum Impedance
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2.67Ω with Sonos Architectural speakers |
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Damping Factor
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>400 (ref. 8 ohms, 20 Hz to 1 kHz) |
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Amplifier Technology
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Class D with GaN and PFFB |
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Total Harmonic Distortion
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0.005% at 2.83Vrms-15Vrms |
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Frequency Response
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±0.5 dB, 15 Hz - 20 kHz |
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Channel Separation (Crosstalk)
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-100dB at 1 kHz 2.83Vrms -80dB at 10 kHz 2.83Vrms |
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Signal-to-Noise Ratio
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114dB ref 125W into 8-Ohm |
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Analogue Audio Input
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2 x RCA inputs -10dB (stereo into one zone) |
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USB-C Analogue Audio Input
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44.1 kHz / 16 bit (stereo into any zone) Requires Sonos Line-In Adapter |
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ProTune
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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 |
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Optimise Sonos Speakers
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When selected in the Sonos app, Optimise Sonos Speakers allows Amp Multi to recognise Sonos Architectural speakers, then applies custom tuning and DSP to provide more robust sound with a more even frequency response, optimising system performance and ensuring stable operation. |
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Wired Networking Interface
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100BaseTX, Ethernet RJ45 |
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Wireless Networking Interface
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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. |
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LEDs
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Front: Device status Rear: Device status, output status (x8), RJ45 status light |
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Power Consumption
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5.4 W (idle) 180 W (all channels driven at 1/8 output power, 8 Ohms) |
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Power
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Auto-switching 100-240V 50/60Hz 10A AC universal input |
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Dimensions (Single Unit)
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Height: 64.5mm / 2.52" Width: 436.8mm / 17.2" Depth: 265.2mm / 10.44" |
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Dimensions (with 2U Rack Mount)
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Height: 82.3mm / 3.47" Width: 483mm / 19.01" Depth: 265.2mm / 10.44" |
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Weight
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11.16 lbs (5.06 kg) |
| Box Contents | Sonos Amp Multi Power Cable Length: 6 ft (2 m) Sonos Banana Plugs Set of eight (8) Quickstart Guide and legal/warranty information |