Russound D850 8 Channel Amplifier Class D Rack Mount

Engineered for performance. Built for installers.
The Russound D850 8-Channel Digital Amplifier is a custom install powerhouse — purpose-built for distributed audio systems across 4 zones. Each of the 8 channels is arranged in stereo pairs, providing independent control per zone and bridgeable options to adjust output based on your project needs.

This amplifier is part of Russound’s next-gen D-Series, offering more efficiency, cooler operation, and a smaller chassis without sacrificing sound quality. It’s the evolution of the popular R-Series platform, with better flexibility and protection built in.

Whether you're running in-ceiling speakers in multiple rooms, building a whole-home audio system, or integrating with Russound keypads and volume controls, the D850 is the installer's go-to choice for reliability and scalability.

With global and zone-specific trigger inputs, auto-switching audio sensing, and protection circuitry, this amp is ready to handle complex setups in residential or light commercial environments. And at just 22 pounds, it’s easier to rack, wire, and service.

Benefits for Installers & Homeowners
Multi-room ready: Easily power 4 audio zones from one unit
Flexible configs: Bridge channels to increase output per zone
Installer-approved: Lighter, cooler, smarter than analog amps
Protected under pressure: Designed to perform under load
Space-saving rack mount: Compact for central AV wiring closets

Tech Specs
Product Type: 8-Channel Digital Multi-Zone Amplifier
Zones: 4 (stereo pairs, bridgeable)
Power Class: Class-D
Inputs: Global Bus + Independent per zone
Trigger Control: Global + Individual zone triggers
Protection: Thermal, short circuit, and power-up delay
Mounting: Rack mountable
Weight: 22.08 lb

8 channels of Class-D amplification for 4 zones
Zones are bridgeable for flexible power output
Compatible with Russound volume controls
Global & per-zone audio sensing + trigger inputs/outputs
Independent inputs per zone or global bus input
Cool-running, efficient Class-D design
Audio sensing with auto-switching delay per zone
Robust protection circuitry for long-term durability
Rack mountable, lightweight form factor