Denon AVC-X4800H

The Denon AVC-X4800H occupies a commanding position in Denon's AV amplifier range — a 9.4-channel powerhouse engineered to deliver unrivalled home cinema performance, with the processing headroom and connectivity to build a genuinely future-proof 8K surround sound system. This is no compromise home theatre at its most capable.

Discrete Power, Extraordinary Scale

At its core, the AVC-X4800H is built around a discrete power amplifier layout — each channel given its own dedicated circuitry to eliminate crosstalk and keep the noise floor as low as possible. The result is 125W per channel (8Ω, 20Hz–20kHz, 2 channels driven) of clean, controlled power, with the authority to drive a full 9.4-channel surround configuration with complete composure. Four subwoofer outputs allow genuinely immersive bass distribution, placing low-frequency weight precisely where the soundtrack demands it.

Immersive Audio Formats — Every One

The AVC-X4800H supports the full suite of immersive audio formats: Dolby Atmos, DTS:X, IMAX Enhanced, and Auro-3D are all on board, with Dolby Surround, Dolby Height Virtualisation, and DTS Neural:X up-mixing available to simulate height channels where full speaker installation isn't possible. 360 Reality Audio support extends the AVC-X4800H's reach into immersive music playback — a 3D, concert-like listening experience drawn from a dedicated platform built for the format. The 11.4-channel processing engine gives you the flexibility to expand with an external stereo amplifier or to use the AVC-X4800H as a preamplifier at the heart of a more ambitious system.

8K Ready Across Every Input

All seven HDMI 2.1 inputs support 8K/60Hz and 4K/120Hz — an uncompromising approach to video connectivity that ensures no bottleneck between source and display. HDCP 2.3 copy protection, ARC and eARC, Dolby Vision, HDR10+, Dynamic HDR, and HLG broadcast HDR compatibility are all present, delivering images of extraordinary depth, contrast, and colour fidelity regardless of source.

Room Correction and Wireless Integration

Audyssey MultEQ XT32 room correction analyses your listening environment and applies precision speaker calibration across the full frequency range, with compatibility with the Audyssey MultEQ Editor App for fine-grained manual adjustment. The AVC-X4800H is also upgradable to Dirac Live room correction — audiophile-grade acoustic optimisation for those who demand the highest level of system tuning. HEOS built-in enables wireless music streaming and multiroom synchronisation with Denon Home speakers, while hi-res USB audio supports FLAC and ALAC up to 24-bit/192kHz.

Technical Specifications

Who Is It For?

The AVC-X4800H is built for the serious home cinema enthusiast who wants a single unit to anchor an 8K-ready, fully immersive surround sound system — without compromise on power, format support, or future-proofing. If you're building a dedicated home theatre room, or upgrading from a mid-range receiver and want a significant step forward in scale and capability, this is the amplifier to audition. Those wanting to step up further within the Denon range should consider the Denon AVC-X6800H or the flagship Denon AVC-A1H. For those building from a more modest starting point, the Denon AVCX3800H offers an excellent entry into the range.

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-X4800H is available to audition at our Norwich showroom — speak to Dave or Chris to arrange a demonstration and discuss which speaker and source combinations will get the most from this amplifier. We can advise on everything from room layout to subwoofer placement, ensuring your system is configured exactly as it should be.

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.