Arcam AVR21 Ex-Demonstration

The Arcam AVR21 is a 7.2-channel A/V receiver that sits at the heart of Arcam's AVR range — delivering the refined audio performance and engineering integrity that have made Arcam one of the most respected names in British home cinema. This ex-demonstration example is in excellent condition, with one very light mark on the volume control and one very light mark on the top of the unit towards the rear. It is sold complete with all original packaging and accessories.

A British-Engineered Home Cinema Receiver

The AVR21 is built on Arcam's long-standing commitment to audio quality — a receiver engineered in Cambridge that prioritises the integrity of the audio signal at every stage of the design. Where many receivers treat amplification as secondary to feature count, Arcam make amplifier quality central to the AVR21's identity — delivering a presentation that is musical, refined, and more at home with both film soundtracks and critical music listening than the majority of its competitors.

Dirac Live Room Correction

The AVR21 incorporates Dirac Live room correction — one of the most respected and widely implemented room correction platforms available, delivering sophisticated acoustic measurement and mathematically precise compensation that transforms the performance of any speaker system in any room. Dirac Live analyses the acoustic signature of your listening environment and applies corrections that eliminate room-induced coloration, tighten bass definition, and bring coherence and focus to the soundstage — a transformation that is audible immediately and that makes the AVR21 genuinely system-agnostic in its ability to extract the best from whatever speakers it drives.

Immersive Audio and Object-Based Formats

The AVR21 supports Dolby Atmos and DTS:X — the leading object-based immersive audio formats that define the state of the art in home cinema sound. Height channel rendering, precise object placement, and the spatial scale that these formats deliver are handled with the composure and refinement that Arcam's audio engineering tradition demands — making the AVR21 a receiver that does justice to the most ambitious film soundtracks as readily as it handles a stereo music stream.

Connectivity and Streaming

The AVR21 offers comprehensive HDMI connectivity alongside support for popular streaming services — allowing the receiver to serve as a complete hub for both physical and network-based sources without additional hardware in the signal chain. Google Chromecast and Apple AirPlay 2 are built in, making high-quality music streaming straightforward and wire-free from any compatible device on the network.

The AVR21 pairs naturally with Arcam's own range of separates — the Arcam PA720 Seven-Channel Power Amplifier extends the system's amplification capability, while the Arcam ST25 Network Streamer adds a dedicated high-resolution streaming source to the signal chain. Those building a complete Arcam system will also find the Arcam CD25 Radia Series CD Player a natural partner for physical media.

Ex-Demonstration Condition

This AVR21 has been used as a demonstration unit at Martins Hi-Fi and is in excellent overall condition. The cosmetic marks are limited to one very light mark on the volume control and one very light mark on the top surface towards the rear of the unit — neither visible during normal use. The unit is sold with all original packaging and accessories, exactly as it would arrive new.

Buying from Martins Hi-Fi

Martins Hi-Fi has been in Norwich since 1968. Elizabeth Gould runs the business today, and we stock only brands we have heard properly and stand behind. This ex-demonstration AVR21 has been used in our Norwich showroom and is known to us personally — you are buying a unit whose condition and provenance we can vouch for completely. Speak to Dave, Chris, or Tim, who can answer any questions about condition, system matching, or the Arcam range.

Contact us at info@martinshifi.co.uk, call 01603 627010, or WhatsApp on 07554 687137. You can read more about how we work on our Why Martins Hi-Fi page. We are at 85–91 Ber Street, Norwich, NR1 3EY.