Premium 11.2 channel AV Surround Receiver with monolithic amplifier design, all 3D audio formats built-in, and unparalleled music playback options, thanks to the HEOS technology.
- 205W x 11ch (6 ohms, 1%, 1ch driven)
- 11.2ch processing, 11.2ch pre-out
- Monolithic amplifier design with Denon custom made transistors
- 5.2ch bi-amping setup
- Dolby Atmos (5.1.2, 5.1.4, 7.1.2, 7.1.4, 9.1.2)
- DTS:X up to 11ch
- Auro-3D, Auromatic (up to 10.1ch)
- Gold plated terminals
- Dolby Vision compatible, HLG (Hybrid Log Gamma; via future firmware update)
- AL32 Processing Multi-channel
- Bass Sync
- Auro-3D, Auromatic (already built-in)
- 5.2ch bi-amping setup
- eARC by fi rmware update
Enjoy the most complete surround sound experience with latest audio formats Dolby Atmos, DTS:X and Auro-3D built-in. Most remarkably, the 11 channel amplification allows for setting up a full 7.1.4 3D experience without the need of an external amplifier.
POWERFUL 11.2 CHANNEL AMP WITH ECO MODE.
The AVR-X6400H features a sophisticated power amplifier section with 11 channels in a monolithic amplifier design for ultimate clarity and power. Each channel is rated at 140 watts per channel (8 ohms, THD0.05%, 20Hz~20kHz), and all channels are able to safely drive lower impedance speakers (down to 4 ohms). There’s also an Auto Eco mode that adjusts the maximum power available according to the volume level as well as an on-screen Eco meter that lets you see the power consumption reduction in real time.
READY FOR THE FUTURE OF HOME THEATER.
The AVR-X6400H’s advanced video section is fully compatible with the latest HDMI and HDCP 2.2 specifications and prepared for any 4K Ultra HD source. High Dynamic Range (HDR), Dolby Vision compatibility, Hybrid Log Gamma (HLG) and eARC (enhanced Audio Return Channel) are at hand as well. You can also enjoy ultra-high-definition pictures from legacy analog and digital sources.
THE HEART OF YOUR WIRELESS NETWORK.
Every sound, all your music, controlled effortlessly. Full wireless connectivity is provided via both Wi-Fi and Bluetooth, Apple Airplay is supported. The built-in HEOS technology allows the AVR-X6400H to become the app-controlled heart of a whole-house wireless multi-room sound network.
PERFECT SET-UP FROM THE START.
The AVR-X6400H easily guides you through the set-up process to ensure the most accurate configuration. Optimize all settings for the best possible sound and video quality with your system from the get-go. The most advanced Audyssey MultEQ XT32 room measurement system provides for best sound in every room.
Dolby Atmos- SOUND IN THE RIGHT PLACE.
Feel every dimension in Dolby Atmos. Dolby Atmos transports you into the story with moving audio that flows all around you with breathtaking realism. Enjoy a 5.1 or 7.1 surround sound speaker system and 4 additional overhead speakers or 4 Dolby Atmos elevation speakers for the ultimate home theater experience - including Dolby Surround upmixer for legacy content.
DTS:X™ - BE CLOSER TO THE ACTION.
DTS:X™ immersive audio places sound where it would occur naturally in space, creating a lifelike, multi-dimensional audio experience in the home. The improved immersion and heightened realism draw you into the world of your favorite movies. The included spatial remapping engine, DTS Neural:X™, gives your movie, game and music collections a new lease on life! DTS:X brings the theater home.
Auro-3D® - PUTTING YOU IN A COCOON OF LIFE-LIKE SOUND.
Auro-3D® elevates the home theater experience to amazing new levels by delivering the excitement of three-dimensional sound for music, games, broadcast, and films while enhancing your existing audio-visual collection, thanks to Auromatic up-mixing engine.
Q50a is expertly tuned by KEF acoustic engineers to bring extraordinarily immersive, cinematically vertical Dolby Atmos sound into the home using precision ceiling reflection when placed on top of Q Series speakers. It is also easily mounted on the wall using dedicated keyholes, creating a high-fidelity home surround sound experience that melds seamlessly with the newest Q Series speakers. Its Damped Tweeter Loading Tube produces a detailed and natural high frequency sound. Part of the Q Series family, Q50a’s visual design shares elements with other Q Series speakers, allowing it to blend seamlessly into contemporary interior design.