Arcam AVR21 Receiver 7-channel Class AB home Cinema Hub
Meet the Arcam AVR21 Receiver - a 7-channel Class AB home cinema hub that marries audiophile finesse with blockbuster dynamics. With native 16-channel decoding for Dolby Atmos, DTS:X, and Auro-3D, dual ESS 9026PRO DACs, and HDMI 2.1 on every input (supporting 8K/60 and 4K/120), it’s built for today’s best movies and next-gen consoles. Dirac Live Full Bandwidth room correction is included for precise imaging and tight, powerful bass; add Dirac Live Bass Control for multi-sub systems. Streaming is seamless with AirPlay 2, Chromecast built-in, Bluetooth aptX HD, Spotify Connect, Tidal Connect, UPnP, and Roon Ready support. Thoughtful touches - eARC, three HDMI outputs (incl. Zone 2), and installer-friendly control - make the AVR21 the sweet spot in Arcam’s lineup.
Arcam AVR21 Q&A:
- Does the AVR21 support 8K and 4K/120 for gaming?
- Yes. All HDMI inputs are HDMI 2.1 with HDCP 2.3, supporting 8K/60 and 4K/120 with eARC.
- How many channels can I power and decode?
- The AVR21 powers 7 channels onboard and decodes up to 16 channels; add external amps for layouts like 7.1.4 or 9.1.6.
- What room correction is included?
- Dirac Live Full Bandwidth is included; Dirac Live Bass Control is an optional paid add-on.
- Which HDR formats are supported?
- Dolby Vision, HDR10+, HDR10, and HLG pass through.
- What streaming options are built in?
- AirPlay 2, Chromecast built-in, Bluetooth aptX HD, Spotify Connect, Tidal Connect, UPnP (MusicLife), and Roon Ready.
- What are the rated power specs?
- 2 ch driven (20Hz–20kHz, <0.02% THD): 110W/175W (8Ω/4Ω); 7 ch driven (1kHz, 0.2% THD): 90W/110W (8Ω/4Ω).
- What’s in the box?
- Remote (2 × AAA), mains lead, DAB/FM aerial, 3 Wi-Fi/Bluetooth antennas, calibration mic, USB cable, Quick Start Guide.
- Any tips for stable HDMI/ARC?
- Keep firmware current, use certified Ultra High Speed HDMI cables, set a fixed output resolution, and disable CEC per source if needed.
- Why do some owners mention warmth or HDMI/CEC quirks?
- Class-AB designs run warm - ensure proper ventilation. For CEC/eARC, follow a known power-up order and use certified Ultra High Speed HDMI cables.
- How do I expand to 7.2.4?
- Use the AVR21’s RCA pre-outs to send sound to surround backs and height channels with external amps.
- How does the Arcam AVR21 compare to other Arcam AVR Receivers?
- Find our Arcam AVR Receiver Comparison Table here.
Arcam AVR21 Full Specifications:
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Amplification: 7 channels of Class AB power
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Surround decoding: Native 16-channel decoding for Dolby Atmos, DTS:X, and Auro-3D
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DACs: Dual ESS 9026PRO with reference regulators
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Room correction: Dirac Live Full Bandwidth included; Dirac Live Bass Control optional (license)
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HDMI: 7 inputs / 3 outputs (including Zone 2), eARC, HDMI 2.1 with HDCP 2.3
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Video formats: 8K@60, 4K@120; Dolby Vision, HDR10+, HDR10 and HLG passthrough
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Streaming & control: Chromecast built-in, Apple AirPlay 2, Bluetooth aptX HD, Spotify Connect, Tidal Connect, UPnP (MusicLife), Roon Ready; Wi-Fi/Ethernet; RS232; IR
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MQA: Supported
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Power output (8Ω/4Ω): 2ch 20Hz–20kHz <0.02% THD: 110W/175W; 2ch 1kHz 0.2% THD: 125W/190W; 7ch 1kHz 0.2% THD: 90W/110W; residual noise & hum (A-wtd): <0.15mV
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Stereo line inputs: Max 4.5V rms; sensitivity 1V/2V/4V; 47kΩ; S/N (A-wtd, ref 100W) 100dB (normal) / 110dB (stereo direct); 20Hz–20kHz ±0.2dB
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Preamplifier outputs: 1V RMS nominal (max 5V RMS); 560Ω; THD+N (20Hz–20kHz): −100dB
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Headphone output: Max 5V rms into 32Ω; output impedance <100Ω
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Power & dimensions: 110–120V or 220–240V, 50–60Hz; max 1.5kW (≈5200 BTU/h); idle 100W (≈350 BTU/h); standby <0.5W; 433 × 425 × 171 mm (W×D×H)
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Weight: 16.6 kg (net); 19.9 kg (packed)
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Included accessories: Mains lead; remote (2 × AAA); Quick Start Guide; DAB/FM aerial; 3 × Wi-Fi/Bluetooth antennas; calibration microphone; USB cable
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EAN (GTIN-13): 6925281994487
