The Russound SMZ8 is a centralized multiroom audio controller that combines an 8-source by 8-zone matrix, six zones of amplification and a hi-res network streamer in one chassis for shelf or 19-inch rack mounting. Zones 1 through 6 are driven by Class D amplifiers rated at 50 watts per channel into 8 ohms, and each output accepts a load down to 4 ohms, so two pairs of 8-ohm speakers can share a zone. Zones 7 and 8 are line-level outputs that can be set fixed or variable to feed an external amplifier for patios or larger rooms.
The built-in streamer is the same hi-res platform used in the MBX-PRE and MBX-AMP. It brings AirPlay, Google Cast, Spotify Connect, Bluetooth and other services over wired Ethernet or dual-band 802.11ac Wi-Fi. The HDMI ARC input brings in TV audio with low-latency synchronization, so the TV can be shared to any zone without lip-sync problems. Other inputs include up to eight signal-sensing analog RCA, three optical, two coaxial and a USB-C port for media playback. A dedicated Streamer Out lets the streamer serve other linked controllers. Per-zone DSP includes a 7-band graphic EQ and voicing presets for Russound speakers. Up to six SMZ8 units can be linked for 48 zones, sharing the same eight sources.
Key Features
- 6 amplified zones at 50 W/ch (8 ohms, 4-ohm minimum) plus 2 line-level zones
- Built-in hi-res streamer with AirPlay, Google Cast and Bluetooth
- HDMI ARC input with low-latency synchronized audio
- 7-band graphic EQ and Russound speaker presets
- Expandable to 48 zones with six SMZ8 controllers
- Optional BTC-2X remote Bluetooth input, paging input, routed IR outputs and 12 V triggers
- Built-in 2-port Ethernet switch
In the Box
- SMZ8 controller amplifier
- 6 ft (1.82 m) power cord
- Two Wi-Fi/Bluetooth antennas
- Rack-mount ears with mounting screws (rack screws not included)
- Six removable screw-down 4-pin speaker connectors
- Owner's manual
Ideal Applications
New whole-home audio installs, media rooms that tie TV audio into the multiroom system, and light-commercial spaces needing several zones with streaming built in.
Compatibility
Controlled with the Russound app, XTS7 touchscreen and IPK-1 keypad, with Amazon Alexa integration. Third-party control uses Russound's RIO protocol, with drivers for Control4, RTI and URC. Additional MBX-PRE streamers can be added as sources (up to seven per SMZ8). Requires an internet connection. Installation by a Russound Certified Installer is required.