Denon AVC-X3900H 9.4CH 4K/8K Dolby Atmos AV Receiver Powered by HEOS™

The heart of your premium sound system

The Denon AVC-X3900H brings immersive home cinema experiences to life with powerful multichannel sound, support for high-resolution video and immersive audio formats, and advanced room correction. A flexible design supports expansive system configurations, with whole-home streaming powered by HEOS.

HEOS® puts whole-home sound at your fingertips

Imagine a world where filling your home with music is as easy as hitting Play. That’s HEOS. Wirelessly stream your favorite music and audio entertainment to every room. Control it all with the free HEOS app. Get up and running in minutes and start streaming without the stress. The HEOS app makes setup quick and seamless—no wires, no hassles, just pure sonic bliss.

Advanced room correction and system optimisation

A built-in suite of Audyssey room correction tools optimises sound for your space, with the option to upgrade to Dirac Live room correction for even more precise system tuning.

High-performance gaming

Serious gamers will enjoy ultra-smooth 4K play, fast response times and 3D audio that moves with the action. Variable Refresh Rate, Auto Low Latency Mode and AMD FreeSync™ keep gameplay fluid and responsive.

70% Guarantee

As surround systems grow, maintaining consistent power across speakers becomes critical to preserving balance and impact. Denon’s 70% Power Guarantee means our AVRs deliver over 70% of rated output to up to five channels simultaneously—helping dialogue stay clear, effects remain controlled and dynamics feel natural as your system expands beyond stereo into multichannel surround.