






Product Dimensions 2.52"h x 17.2"w x 10.44"d
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 optimize 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.Read More
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-optimized 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, maximizing airflow, and keeping cable management clean.
The Rack Mount creates space above and below each unit to support airflow in a clean, 2U configuration.
With its flat back design, Amp Multi slides easily onto the Rack Mount. Installation is satisfyingly simple.
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.
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.
From major technological innovations to thoughtful details, Amp Multi is engineered with sustainability at every level.
Amp Multi features 47% recycled plastic—helping reduce waste and give materials a second life.
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.
The exterior and interior packaging is 100% recyclable and crafted using paper certified by the Forest Stewardship Council®.
General Specs | |
| Amplifier Channels | 8 |
| Amplifier Class | Class D |
| Amplifier Output (Watts) | 125 |
| Frequency Response | 15 |
| Impedance | 8 ohms |
| Analog Audio(RCA) Input | 2 |
| Analog Audio(RCA) Output | 1 |
| Headset Jack | No |
| Wifi Capable | Yes |
| Bluetooth Capable | No |
| Smart Compatible | Yes |
| Streaming Capable | Yes |
| Featured Streaming Services | Apple Airplay 2, Spotify |
| Outdoor Approved | No |
| Color | Black |
| Color/Finish Name | Black |
| Width (in.) | 17.2 |
| Width (cm) | 43.69 |
| Depth (in.) | 10.44 |
| Depth (cm) | 26.52 |
| Height (in.) | 2.52 |
| Height (cm) | 6.4 |
| Product Weight (lbs.) | 11.16 |
| Product Weight (kg) | 5.06 |
| Voltage | 100-240 |
| Amp | 10 |
Audio | |
| 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 |
| 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. |
Details + Dimensions | |
| 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 | 11.16 lbs (5.06 kg) |
| Colours | Black |
| Finish | Matte |
| LEDs | Front: Device status Rear: Device status, output status (x8), RJ45 status light |
Power + Connectivity | |
| 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 input |
| Wired Networking Interface | 100BaseTX, Ethernet RJ45 |
| 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. |
| 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. |
| CPU | Quad Core 4xA55 1.9GHz |
Box Contents | |
| Power Cable | Length: 6 ft (2 m) |
| Sonos Banana Plugs | Set of eight (8) |
| Documentation | Quickstart Guide and legal/warranty information |
Requirements | |
| Speakers | Passive speakers required for audio output |
| Internet Connection | Ethernet connection or WiFi Ethernet needs Category 5 (CAT5) cable or higher |
| Power Source | Nearby electrical outlet |
| Sonos app | The latest generation of the Sonos app running on a compatible device |