AMP MULTI

Multi-Channel Streaming Amplifier

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 8x 125 W 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.

Audio:

• Speaker Outputs: 8 amplified outputs each independently configurable for stereo or mono
• Power: 125 W per channel @ 8 Ω (all channels driven)
• Minimum Impedance: 2.67 Ω with Sonos Architectural speakers
• Damping Factor: > 400 (ref. 8 Ω, 20 Hz to 1 kHz)
• Amplifier Technology: Class D with GaN and PFFB
• Total Harmonic Distortion: 0.005% at 2.83-15 Vrms
• Frequency Response (±0.5 dB) 15 Hz - 20 kHz
• Channel Separation (Crosstalk): 100 dB at 1 kHz 2.83 Vrms; 80 dB at 10 kHz 2.83 Vrms
• Signal-to-Noise Ratio: 114 dB ref 125 W into 8 Ω
• 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 - 50 ms; Highpass: 15-100 Hz (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.

Details + Dimensions:

• Dimensions - Single Unit (WxHxD): 437 x 65 x 265 mm
• Dimensions - with 2U Rack Mount (WxHxD): 483 x 82 x 265 mm
• Colours: Black
• Finish: Matte
• LEDs: Front: Device status; Rear: Device status, output status (8x), RJ45 status light

Power + Connectivity:

• Power Consumption: 5.4 W (idle), 180 W (all channels driven at ⅛ output power, 8 Ω)
• Power: Auto-switching 100-240 V 50/60 Hz 10 A 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: 2x RCA inputs -10 dB (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: 1x RCA output -10 dB (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 4x A55 1.9 GHz

Box contents:

• Sonos Amp Multi
• Power Cable (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