Arcam AVR21 HDMI 2.1 High Power Class AB AV Receiver
High-power 16-channel processing / 7-channel powered AV receiver • 90W RMS per channel @ 8Ω (all 7 driven) / 110W @ 8Ω (2 driven) • Class AB amplification architecture • ESS SABRE ESS9028PRO DAC • Dirac Live room correction & Dirac Live Bass Control ready • HDMI 2.1 with 8K/60Hz & 4K/120Hz
The Arcam AVR21 HDMI 2.1 High Power Class AB AV Receiver is a high-power audio/video receiver engineered to deliver breathtaking cinema dynamics, uncompromised signal fidelity, and comprehensive multi-channel processing. Generating 90 Watts per channel continuously into 8 Ohms across all 7 driven channels (110W into 2 channels) via its high-current Class AB output stage, it powers demanding surround speaker arrays with explosive impact and control. Built with dual ESS SABRE ESS9028PRO DACs, a full 48Gbps HDMI 2.1 video architecture supporting 8K/60Hz and 4K/120Hz pass-through, Dirac Live room calibration, and multi-subwoofer Dirac Live Bass Control readiness, the Arcam AVR21 HDMI 2.1 High Power Class AB AV Receiver provides a reference foundation for high-end immersive home theater setups.
Key Features & Innovations
High-power Class AB amplification with 16-channel DSP — the Arcam AVR21 HDMI 2.1 High Power Class AB AV Receiver outputs 90W RMS per channel into 8Ω across all 7 driven channels, paired with 16 pre-out channels for expansion up to 9.1.6 Dolby Atmos, DTS:X Pro, and Auro-3D speaker systems.
Full 48Gbps HDMI 2.1 platform — features 7 HDMI inputs and 3 outputs supporting 8K/60Hz, 4K/120Hz, HDCP 2.3, eARC, Dolby Vision, Dynamic HDR10+, VRR, ALLM, and QFT for modern gaming and display standards.
Dirac Live room correction & Dirac Live Bass Control ready — includes full-bandwidth Dirac Live acoustic calibration alongside support for Dirac Live Bass Control to eliminate acoustic room modes and manage subwoofer integration.
Dual ESS SABRE ESS9028PRO DAC architecture — incorporates twin 32-bit ESS SABRE PRO D/A converters with low-jitter clocking to ensure exceptional resolution, low noise, and razor-sharp soundstage placement.
Universal hi-res streaming & multi-room wireless — offers native support for Apple AirPlay 2, Google Cast, Bluetooth aptX HD, Spotify Connect, Tidal Connect with MQA decoding, and Roon Ready integration over Wi-Fi or Ethernet.
FAQ — Arcam AVR21 HDMI 2.1 High Power Class AB AV Receiver
How does the AVR21 compare to the AVR11 and flagship AVR31 models?
The Arcam AVR21 HDMI 2.1 High Power Class AB AV Receiver expands DSP decoding to 16 channels (versus 12 channels on the AVR11) and increases output power to 90W/ch (all 7 driven). The flagship AVR31 shares the 16-channel processing platform but upgrades the power section to Class G topology (100W/ch).
How many channels can the AVR21 power directly versus process?
The AVR21 directly powers 7 speaker channels using its high-current Class AB amplifiers. Its internal DSP decodes up to 16 discrete channels (9.1.6 layout), allowing expansion by connecting external power amplifiers (such as the Arcam PA410 or PA240) to its pre-outs.
Is the Dirac Live calibration microphone included in the box?
Yes. The receiver includes full-bandwidth Dirac Live software capability out of the box, complete with a factory-calibrated USB measurement microphone and cable to run calibration routines using a Mac or PC.
Does the AVR21 support eARC and high-frame-rate 4K/120Hz gaming?
Yes. All 7 HDMI inputs support full 48Gbps HDMI 2.1 bandwidth, enabling uncompressed audio return via eARC as well as 4K/120Hz and 8K/60Hz video pass-through from gaming consoles and streaming devices.
Why Buy From Us
Authorized Arcam flagship dealer offering 100% genuine products with full manufacturer warranty coverage
Expert technical consultation on Class AB power stages, Dirac Live room calibration, and 16-channel system design
Dedicated concierge customer support for setup, network configuration, and system optimization
Fast, secure freight shipping with protective white-glove packaging on every order
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Arcam PA240 Stereo Power Amplifier for main front channel bi-amping
Ultra High Speed 48Gbps 8K HDMI cables and heavy-gauge oxygen-free speaker wire
