Description
Arcam AVR21 HDMI 2.1 High-Power Class AB AV Receiver
High-performance high-power Class AB AV receiver with 16-channel immersive-audio decoding, Dirac Live room correction and HDMI 2.1 for premium home theatre systems.
Arcam AVR21 HDMI 2.1 High-Power Class AB AV Receiver is a av receiver aimed at systems where performance and integration both matter.
AV receiver
Built around the job it actually needs to do
The receiver combines seven onboard high-power Class AB amplifier channels with 16-channel decoding, allowing external power amplifiers to be added for larger layouts. Dirac Live is included for room optimisation, with system expansion available through the wider Dirac ecosystem where supported.
System Integration
Connectivity, control and calibration matter in the finished room
Real-World System Fit
Match the product to the room and the rest of the electronics
System Fit and Buying Advice
With Arcam AVR21 HDMI 2.1, start with the speaker layout rather than the receiver or processor itself. Decide how many bed, height and subwoofer channels the room genuinely needs, then work backwards into amplification and processing. That keeps the system from being over-specified in one area while missing channels or flexibility somewhere else.
Key Features
- The receiver combines seven onboard high-power Class AB amplifier channels with 16-channel decoding, allowing external power amplifiers to be added for larger layouts.
- Dirac Live is included for room optimisation, with system expansion available through the wider Dirac ecosystem where supported.
- Seven HDMI inputs support 8K/60 and 4K/120 video, eARC and modern HDR formats, while network streaming covers AirPlay 2, Google Cast/Chromecast and Roon-ready use.
Specifications
| Specification | Details |
|---|---|
| Amplified channels | 7 |
| Decoding | 16-channel |
| Amplification | high-power Class AB |
| Room correction | Dirac Live |
| HDMI | HDMI 2.1; 8K/60 and 4K/120 support |
| Video outputs | 3 HDMI outputs including Zone 2 |
Detailed Technical Specifications
For those who like to drag out all the useful bits
View full technical specifications
Core specifications
- Amplified channels:7
- Decoding:16-channel
- Amplification:high-power Class AB
- Room correction:Dirac Live
- HDMI:HDMI 2.1; 8K/60 and 4K/120 support
- Video outputs:3 HDMI outputs including Zone 2
System planning
- Application:It suits a premium home theatre that values music performance as well as surround decoding, with room to add external amplification as the speaker layout grows.
- Installation:Allow ventilation, cable access and service access appropriate to the installation.
Important Notes
- Plan ventilation and external amplifier allocation before configuring expanded immersive layouts.
The Audio Experts Take
AVR21 gives you a larger power platform than the AVR11 while keeping the same general Arcam approach to processing, Dirac and system integration. We would look at it for a medium or larger cinema where the main speakers deserve more headroom but the AVR31's Class G stage is not essential to the brief. Speaker layout and future expansion are the deciding factors, so talk to us before choosing purely by model number.
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