Denon AVC-X3800H

The Denon AVC-X3800H sets a new standard at its price point — a nine-channel AV amplifier engineered to deliver genuinely immersive home cinema sound, with the processing power, connectivity, and flexibility to build a system that grows with your ambitions. This is uncompromising surround sound performance, brought within reach.

Nine Channels, Extraordinary Flexibility

The AVC-X3800H delivers nine channels of discrete amplification, supporting speaker configurations from 7.4.2 to 5.4.4 Dolby Atmos layouts — with four ceiling speakers or Atmos-enabled units for overhead sound. A second zone output allows a further pair of speakers in another room, or bi-amping of your main front speakers for enhanced dynamic range and clarity. Four dedicated subwoofer outputs allow true corner-to-corner bass distribution, smoothing the low-frequency response across the entire room and delivering weight and impact precisely where the soundtrack demands it.

Expand to Eleven Channels

Add an external stereo power amplifier and the AVC-X3800H's 11.4-channel processing engine comes fully into its own. A 7.2.4 configuration with four height channels brings Dolby Atmos to its full cinematic potential, whilst a 9.2.2 system with front wide speakers adds an extraordinary sense of breadth and envelopment. For those who prefer non-Atmos immersion, an 11.2 configuration with front width and height channels delivers a soundstage of remarkable scale.

Every Immersive Audio Format

The AVC-X3800H supports the complete range of immersive audio formats: Dolby Atmos, Dolby Atmos Height Virtualisation Technology, DTS:X, DTS Virtual:X, IMAX Enhanced, and Auro-3D with Auro-Matic up-mixing. Whatever speaker arrangement you choose — from a compact system relying on virtual height processing to a full-blown 11.4 configuration — the AVC-X3800H has the format support to match.

Room Correction — Audyssey MultEQ XT32

Featuring Audyssey's flagship MultEQ XT32 room correction technology, the AVC-X3800H analyses your listening environment across multiple measurement points and applies precision calibration to every speaker in the system. Dynamic Volume, Dynamic EQ, LFC, and SubEQ HT are all included, with optional access to advanced manual settings via the MultEQ Editor App. For those who demand the most precise acoustic optimisation available, Dirac Live room correction is available as a future firmware upgrade — professional-grade measurement and correction drawn from one of the world's leading acoustic research companies.

8K Ready Across Every Input

All six HDMI inputs on the AVC-X3800H support 8K pass-through, 4K/120Hz, and 8K upscaling of 4K content — a complete 8K interface that represents a significant advance on its predecessor. Two of the three HDMI outputs are likewise 8K compatible. HDCP 2.3 copy protection is supported throughout, alongside Dolby Vision, HDR10+, Dynamic HDR, and HLG broadcast HDR — ensuring the AVC-X3800H handles every current and emerging video format with complete authority.

Built for Gamers

Variable Refresh Rate (VRR), Auto Low Latency Mode (ALLM), and Quick Frame Transport (QFT) make the AVC-X3800H an exceptional choice for gaming. All HDMI inputs support 4K/120Hz, delivering fluid, tear-free visuals with the lowest possible input lag — and with full Dolby Atmos gaming support, the sonic experience matches the visual.

HEOS Multiroom and Wireless Streaming

HEOS built-in connects the AVC-X3800H to your home network via dual-band Wi-Fi, enabling wireless music streaming and synchronisation with up to 32 HEOS units across your home. Spotify, Tidal, Deezer, and internet radio are all accessible via the dedicated HEOS app, with Apple AirPlay 2 support adding Siri voice control and multiroom audio synchronisation with other AirPlay 2 devices. Alexa and Google Assistant compatibility completes the picture.

Specifications

Who Is It For?

The AVC-X3800H is the natural choice for the home cinema enthusiast who wants nine-channel immersive audio with genuine headroom to expand — without stepping up to the price bracket of the Denon AVC-X4800H. Those building a more modest system should consider the Denon AVR-X2800H, whilst those ready to go further within the range will find the Denon AVC-X6800H a worthy step up.

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. The Denon AVC-X3800H is available to audition at our Norwich showroom — speak to Dave or Chris to arrange a demonstration and discuss the speaker configuration and room layout that will get the most from this amplifier.

Contact us at [email protected], 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.