Russound D850 AMP Front
Russound D-Series D850 Amp

£1,549.99 (Inc. VAT)

£1,291.66 (Exc. VAT)

In Stock

SKU: D850i
Quick Overview

Meet the all new Russound D-Series D850 8 Channel Digital Power Amplifier. More power, more efficient, more robust…just more. This the next generation of Russound’s unbeatable multi-channel amplifier range. After complete redesign form the ground up,the result is the D-Series, a completely custom-built solution that has all the great features of the popular R-Series amps in a much more refined platform.


Product Description

The Russound D-Series amplifiers available in 8 and 16 channel versions.  Through redesign the digital amplifiers now feature a lighter weight smaller chassis and more efficient class D Power.The feature-rich design of the D850 is ideal for the demands of distributed audio systems and is also compatible with our Russound volume controls

Russounds D850 amplifier features 8 channels / 4 zones.  This means you can run 4 pairs of stereo speakers into 4 independent rooms or zones each pair producing 100W. All rooms can 4 independent music sources at any time or any zone can be joined to the internal Bus to play the same music in all zones. With Ultra-low distortion output (relatively unheard of in other multi-zone amplifiers) allows for clean, undistorted audio even at high listening volumes. A robust protection circuit provides efficient, safe and reliable operation under extreme conditions and protects each amplifier output channel.

Need more Power?

With Bridgable Channels, the D850 can increase the power output from the amplifier to your speakers. By bridging the channels you will decrease your zone / room availability but increase the power to the speakers working from the bridged channel.The D-Series amps are even up to the rigorous demands of home theatre applications, easily transforming into a powerful 160 watt X 4 channel monster (in bridged mode). You can also choose to individually un-bridge pairs for lower power applications such as Dolby Atmos or surround speakers. As an example you could run a 5.1 system at 3 channels @ 160W and 2 channels at 50W. That’s Russound versatility!

What is Class D

Class D is digital amplification, cool running amplification, light weight smaller chassis,high efficiency (> 90% on average);which is significantly better than a Class-AB design (78.5 percent at best and typically closer to 50 percent).

Lose the “hum”

Advanced triggering options allow the amps to operate on demand. Apart from the obvious energy efficiency, there is no amplifier hum on your speakers when the system isn’t in use.


Russound D850 – Four Zone/Eight Channel Digital Power Amplifier – Features & Benefits:

  • High efficiency, cool running digital amplification
  • Zones are bridgeable to create flexible power configurations
  • Global bus input, independent inputs per zone
  • Global trigger input/output
  • Independent trigger input/output per zone
  • Audio sensing with auto-switching delay settings per zone
  • Class-D power compatible with Russound volume controls
  • Robust protection circuitry for operation under extreme conditions
  • Rack mountab


Power Output 80W /Channel, 1kHz into 4 Ohms, 50W /Channel, 1kHz into 8 Ohms. Bridged: 160W, 1kHz into 8 Ohms
Amplified Channels 8 channels, 4 independent zones
Shipping Weight 9.5Kg
Signal to Noise Ratio >90dB A-weighted
Bridge Mode Select Stereo or Bridge mode per zone 8 Ohm only
Frequency Response 20Hz to 20kHz +1.7/-1dB at 1W output into 8 Ohms
Fuse Rating 100-120V/T5A, 250V US & Canada,

220-230V/T2.5A, 250V Europe

Input Impedance >22k Ohms Line Input
Input Sensitivity 600 mV for 80W @ 1 KHz 4 Ohm One Zone
700 mV for 50W @ 1 KHz 8 Ohm One Zone
Power Output 80W /Channel, 1kHz into 4 Ohms,

50W /Channel, 1kHz into 8 Ohms. Bridged:

160W, 1kHz into 8 Ohms

Power Requirement(s) North American Model D850: 100-120VAC 60Hz 600W max, IEC C14 type connector with 3 terminal detachable power cord

International Model D850i: 220-240VAC 50Hz 600W max, IEC C14 type connector with 3 terminal detachable power cords for UK, Europe, and Australia

Speaker Connection(s) Detachable speaker terminals support up to 14awg wire.
Switching Delay Three settings, 5 Seconds, 5 minutes, 10 minutes.
Trigger Input(s) Bus In /Out. Each Zone In/Out 12VDC 100mA
Zone Line Input Line or Bus select switch per zone


Tech Info

Russound D-Series D850 Amp Product Manual

Russound D-Series D850 Amp Product Brief 


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