Russound D890 8-Channel High-Efficiency Multi-Zone Power Amplifier
The Russound D890 is a high-performance 8-channel digital power amplifier engineered to distribute clean, efficient audio across four independent zones in whole-house distributed audio and multi-room entertainment systems. Delivering 45 Watts per channel into 8 ohms or 90 Watts per channel into 4 ohms using high-efficiency Class-D amplification, the D890 can also be bridged to push 180 Watts into an 8-ohm load for high-demand areas or outdoor spaces.
Featuring dual stereo bus inputs, dedicated local line inputs for every zone, independent rear-panel volume gain controls, and versatile 3-way audio filter switches for Full Range, Low-Pass, and High-Pass operation, this compact 1U amplifier offers exceptional integration flexibility. Equipped with smart turn-on modes including 12V triggers and audio signal sensing, it ensures reliable automated power management for custom audio installations.
If you need to figure out how to power in-ceiling speakers across multiple rooms, distribute audio to an outdoor patio, or integrate a compact 8-channel amplifier into a professional AV rack, the Russound D890 answers that exact requirement. Custom home integrators and audio enthusiasts searching for a reliable, bridgeable multi-room Class-D amplifier will find the D890 simple to configure, install, and calibrate for any whole-home sound project.
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The Russound D890 8-Channel Multi-Zone Digital Power Amplifier delivers reliable, audiophile-grade amplification for up to 4 independent stereo listening zones. Engineered with advanced high-efficiency Class D circuitry, the D890 outputs 45 Watts per channel into 8 Ohms (90 Watts into 4 Ohms) or up to 180 Watts bridged mono per channel pair, making it an ideal choice for whole-home audio installations, outdoor speaker zones, and distributed commercial audio.
Featuring two global bus inputs with loop outputs and four dedicated local zone inputs, the D890 offers flexible source routing to suit any architectural listening configuration. Channel bridging switches, individual zone gain trims, and automatic audio sensing modes are housed within a streamlined 1U rack-mountable chassis that saves valuable equipment space while ensuring cool, maintenance-free operation.
Features:
- 8-Channel Clean Multi-Room Power: Drives up to 4 independent stereo audio zones with 45W per channel at 8 Ohms and 90W at 4 Ohms.
- Selectable High-Power Channel Bridging: Bridge adjacent channels to deliver 180 Watts mono into 8 Ohms for larger architectural spaces.
- Dual Global Bus Architecture: Route shared sources across multiple rooms via two global bus RCA inputs with buffered loop outputs.
- Dedicated Local Zone Inputs: Individual local stereo RCA inputs for each zone permit personalized room-specific audio sources.
- Ultra-Compact 1U Rack Build: High-density 1U form factor delivers maximum channel count with minimal rack space and low thermal generation.
- Multiple Automated Turn-On Triggers: Supports always-on, signal-sensing auto turn-on, and 12V external trigger integration.
Specifications:
- Amplifier Channels & Performance:
- Channel Count: 8 Channels (4 Configurable Stereo Zones)
- Output Power (8 Ohms): 45 Watts per Channel (20 Hz - 20 kHz, THD < 0.1%)
- Output Power (4 Ohms): 90 Watts per Channel (20 Hz - 20 kHz, THD < 0.1%)
- Bridged Output Power (8 Ohms): 180 Watts per Channel Pair
- Frequency Response: 15 Hz – 20,000 Hz (+/- 1 dB)
- Signal-to-Noise Ratio: Greater than 95 dB (A-Weighted)
- Input Matrix & Connectivity:
- Global Bus Inputs: 2x Stereo RCA Inputs with Buffered Loop Outputs
- Dedicated Zone Inputs: 4x Stereo RCA Local Inputs
- Trigger System: 12V DC In and Out (3.5 mm Mini-Jacks)
- Speaker Outputs: 4x Removable 4-Pole Screw-Down Euroblock Connectors
- Dimensions & Physical Build:
- Form Factor: 1U Standard 19" Rack-Mount
- Dimensions (W x D x H): 17.0" x 12.5" x 1.75" (432 x 318 x 44 mm)
- Net Weight: 12.8 lbs (5.8 kg)
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