Sonos Amp Multi 8 Channel Multiroom Streaming Amplifier
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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.
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. With ProTune, installers can optimise the sound for any low-impedance passive speakers, tailoring performance to placement and room acoustics. ProTune offers a full suite of manual controls, including a 10-band parametric EQ plus adjustable gain and delay offsets, enabling truly bespoke audio experiences. Its innovative chassis design enhances thermal performance, while recessed connectors, status LEDs, and a streamlined 2U rack mount simplify setup and ensure reliable, fanless cooling.
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-optimised chassis enhances performance and durability all within a compact design built for the rack.
Ready to rack
Designed specifically for Amp Multi, the 2U Rack Mount streamlines installations by reducing wasted space, maximising airflow, and keeping cable management clean.
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.
Works with your devices
Partner integrations offer seamless control of your Sonos system alongside all your compatible smart home devices.
Features
- 8 x 125W
- 4 Zones
- Pro Tune
- 2U rack Mount
- GaN and PFFB
- Ethernet and WiFi 6
- Apple Airplay 2 and Spotify Direct
- Fanless
Specifications
- Speaker Outputs 8 amplified outputs each independently configurable for stereo or mono
- Power 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
- Optimise Sonos Speakers 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.
- Dimensions (Single Unit) Height 2.52 in (64.5 mm), Width: 17.2 in (436.8 mm), Depth: 10.44 in (265.2 mm)
- Dimensions (with 2U Rack Mount) Height: 3.47 in (82.3 mm), Width: 19.01 in (483 mm), Depth: 10.44 in (265.2 mm)
- Weight 5.06 kg
- Power Consumption 5.4 W (idle), 180 W (all channels driven at 1/8 output power, 8 Ohms)
- Power Auto-switching 100-240V 50/60Hz 10A AC universal inputWired
- Networking Interface 100BaseTX, Ethernet RJ45Wireless 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.Analogue
- Audio Input 2 x RCA inputs -10dB (stereo into one zone)USB-C Analogue
- 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
- Direct Streaming Formats Apple AirPlay 2, Spotify Direct Control, and more.
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CPU Quad Core 4xA55 1.9GHz