Sonos Amp Multi - 8-Channel Professional Streaming Amplifier | AMLTIUS1BLK
Sonos Amp Multi - 8-Channel Professional Streaming Amplifier | AMLTIUS1BLK
Available to order — ships from incoming stock
Typically ships in 3–6 Business Days (Western Canada) · 3–6 Business Days (Eastern Canada)
SKU:AMLTIUS1BLK
Rack-first, high-density distributed audio
Sonos Amp Multi combines eight independently assignable 125W amplified outputs with up to four configurable zones in one fanless, network-connected amplifier. It is designed for professional distributed-audio systems where flexible zone planning, clean rack integration and repeatable commissioning matter.
Best suited to: premium residences, high-zone-count homes, mixed indoor/outdoor audio, MDU projects and light-commercial background-music systems. The Amp Multi Rack Mount is sold separately.
Designed around the realities of professional installation
Eight outputs in one compact chassis
Reduce device count and simplify power, networking and cable management compared with deploying multiple independent stereo amplifiers.
GaN efficiency with no cooling fan
High-efficiency GaN amplification and a thermally optimized chassis enable silent passive-convection cooling with no fan noise, dust intake or fan failure point.
Manual ProTune control per output
Tune each output using a 10-band parametric EQ, gain, delay and high-pass controls to address different rooms, speaker placements and acoustic conditions.
Assign outputs to match the project
Use more outputs in large zones and fewer in smaller rooms. Outputs are not locked into a fixed one-amplifier-per-stereo-zone architecture.
Native app, streaming and partner control
Configure zones, assign outputs, choose sources and monitor status in the Sonos app, with support for AirPlay 2, Spotify Direct Control and compatible control-system integrations.
Optimize Sonos Speakers
When Sonos Architectural speakers are selected in the app, Amp Multi applies purpose-built tuning and DSP for more even response, stable operation and supported low-impedance configurations.
Outputs, zones and streams
Assign the eight amplified outputs across as many as four zones. Each configured zone can operate independently with its own source, playback and volume control. Larger spaces can receive multiple outputs, while smaller spaces can use fewer outputs.
- Per Amp Multi: up to 4 zones
- Sonos system maximum: 32 configured zones
- Example: 8 Amp Multi units configured for 4 zones each equals 32 zones
- Single-zone scaling: up to 16 Amp Multi units in one zone when connected by Ethernet
- Four configured zones can provide four independent streams
- Fewer configured zones produce fewer independent stream destinations
- Sources can include the Sonos app, AirPlay 2, Spotify Direct Control and supported services
- One wireless Sonos Sub can be assigned per zone
- Up to four wireless Sonos Subs total when four zones are configured
- The single RCA subwoofer output can be assigned to one zone for a powered third-party subwoofer
Amp Multi is designed for distributed audio and does not replace an HDMI-equipped Sonos Amp or Sonos soundbar in a television or home-theatre zone. These products can coexist in the same Sonos system.
Core audio and amplifier specifications+
| Speaker outputs | 8 amplified outputs, each independently configurable for stereo or mono |
| Power output | 125W per channel at 8Ω, all channels driven |
| Minimum impedance | 2.67Ω with Sonos Architectural speakers and supported optimization |
| Amplifier topology | Class D with gallium nitride (GaN) transistors and post-filter feedback (PFFB) |
| Damping factor | >400, referenced to 8Ω from 20Hz to 1kHz |
| Total harmonic distortion | 0.005% at 2.83Vrms–15Vrms |
| Frequency response | 15Hz–20kHz, ±0.5dB |
| Channel separation | −100dB at 1kHz / −80dB at 10kHz, 2.83Vrms |
| Signal-to-noise ratio | 114dB referenced to 125W into 8Ω |
| Bridging or power sharing | Not supported |
ProTune, speaker optimization and control+
- 10-band parametric EQ per output
- ±15dB EQ gain with Q and frequency control
- High-shelf, low-shelf and bell filters
- Gain trim from −15dB to +5dB
- Delay from 0–50ms
- High-pass filter from 15–100Hz
When selected in the Sonos app, this mode identifies supported Sonos Architectural speakers and applies custom tuning and DSP intended to improve frequency response, optimize performance and maintain stable operation.
- Configuration and playback control through the Sonos app
- No physical playback or volume controls
- No Trueplay room tuning
- Front and rear status indicators
- Eight rear output-status indicators
Inputs, outputs and network connections+
- Eight custom Sonos banana plugs included
- Compatible with standard-diameter banana plugs
- Supports direct speaker-wire connection where appropriate
- Speaker-presence and output-status feedback in the system
- 2 × RCA analog inputs at −10dB, providing a stereo source assignable to a zone
- USB-C analog audio input at 44.1kHz / 16-bit using the Sonos Line-In Adapter
- 1 × RCA subwoofer output at −10dB, assignable to one zone
- One wireless Sonos Sub supported per zone
- 100Base-TX Ethernet RJ45
- Single Ethernet port; no Ethernet daisy-chain
- WiFi 6 with compatible 2.4GHz / 5GHz router
- Apple AirPlay 2, Spotify Direct Control and supported Sonos services
- Bluetooth audio is not supported
Dimensions, power, environment and box contents+
| Standalone dimensions | 17.2 × 2.52 × 10.44 in (436.8 × 64.5 × 265.2 mm), W × H × D |
| Dimensions with 2U Rack Mount | 19.01 × 3.47 × 10.44 in (483 × 82.3 × 265.2 mm), W × H × D |
| Net weight | 11.16 lb (5.06 kg) |
| Power input | Auto-switching 100–240V, 50/60Hz, 10A AC universal input |
| Idle consumption | 5.4W with WiFi disabled |
| 1/8 power consumption | 180W with all channels driven at 1/8 output power into 8Ω |
| Operating temperature | 32–95°F (0–35°C) |
| Humidity | 10%–85%, non-condensing |
| Box contents | Sonos Amp Multi, set of 8 banana plugs, 6 ft (2 m) power cable, quick-start and legal/warranty documentation |
| Requirements | Passive speakers, nearby electrical outlet, Ethernet or WiFi, and the current Sonos app on a compatible device |
Rack integration and ventilation+
The amplifier is 2.52 in (64.5 mm) high and is commonly described as an approximately 1.5U device. It can be shelf-mounted where adequate ventilation is available.
The separately sold Rack Mount creates clearance above and below the amplifier in a clean 2U installation, helping maintain airflow without separate vent panels.
Rack Mount SKU: RKMTAWW1BLK · UPC: 840136815587
Allow at least 4 in (10 cm) of clearance above and at the sides when the unit is not installed using the purpose-built Rack Mount.
Waste-heat reference for rack planning+
| Operating condition | 115 VAC | 240 VAC |
|---|---|---|
| Idle, WiFi disabled | 4.3W · 14.66 BTU/hr | 5.28W · 18.00 BTU/hr |
| 1/8 power, pink noise, 8Ω | 38.56W · 131.48 BTU/hr | 31.49W · 107.37 BTU/hr |
| Full power, pink noise, 2.67Ω | 101.15W · 344.93 BTU/hr | 96.15W · 327.88 BTU/hr |
Use the complete Sonos specification sheet for thermal calculations across other loads and operating conditions.
Specifications, design and installation documents
Simply Controlled can help validate zone configuration, output allocation, speaker loading, subwoofer strategy, network planning and rack ventilation before an order is finalized.
Request system design supportOrdering, availability, installation and system limits
Can I order while inventory is incoming or temporarily committed?+
When should I expect Amp Multi availability?+
Is full payment required?+
Is the 2U Rack Mount included?+
Does Amp Multi support HDMI?+
Does Amp Multi support Trueplay?+
How large can an Amp Multi system be?+
How many Amp Multi units can be grouped in one zone?+
Can channels be bridged or share power?+
How many subwoofers can be used?+
Can the USB-C port play files from a USB drive?+
How is Amp Multi configured and controlled?+
Responsible by design
Amp Multi combines a serviceable architecture, fanless thermal design and lower-idle-power operation with sustainability-focused materials and packaging.
Dealer checkout with Canadian design support
Approved dealers can sign in to view pricing and order through the product purchase controls above. Orders are fulfilled from received inventory in the order confirmed; when available stock is committed, the next paid orders are assigned to the next incoming Sonos allocation. Exact shipment timing remains subject to allocation, inbound transportation and warehouse receipt.
Spec / Sell Sheets
Spec / Sell Sheets
