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.
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.
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.
Every sound, all your music, controlled effortlessly. Full wireless connectivity is provided via both Wi-Fi and Bluetooth, Apple Airplay 2 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.
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.
Surround yourself in cinema-grade sound from literally any direction.
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™ 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® 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.
Enjoy ultra-high-definition pictures, even from analog and digital SD sources.
All eight HDMI inputs and three HDMI outputs feature HDCP 2.2 compatibility and the latest HDMI specifications, including 4K Ultra HD 60Hz video, 4:4:4 Pure Color sub-sampling, High Dynamic Range (HDR) and 21:9 video, 3D, and BT.2020 pass-through support. It is even ready for Enhanced Audio Return Channel (eARC) for 3D audio playback through TV apps. The feature will be enabled via a future firmware update.
The AVR-X6400H owns an advanced video processor to upscale existing lower resolution video from any analog or digital source to true 4K. With three HDMI outputs, you can even connect a TV and a projector in the main room, while playing back different content on a second zone screen.
The AVR-X6400H supports High Dynamic Range (HDR) video format. It is even ready for Dolby Vision and HLG (Hybrid Log Gamma). Dolby Vision transforms the viewing experiences with astonishing brightness, contrast, and color. HLG offers HDR technology over broadcast content.
Get your AVR-X6400H up and running in no time, perfectly tailored to your needs.
The AVR-X6400H features the most advanced Audyssey MultEQ XT32 room acoustic measurement system including Audyssey Dynamic Volume, Dynamic EQ, LFC and SubEQ HT. Through these technologies, and with the supplied microphone, it exactly analyzes each speaker's output to optimize the overall listening experience. With the additional Audyssey MultEQ Editor App (available for purchase), very advanced users can even go further "under the hood" if desired.
The AVR-X6400H is equipped with an advanced dual antenna system for robust and error-free streaming, featuring Bluetooth and Wi-Fi connectivity as well as Apple's AirPlay 2 for direct music playback from Apple's iDevices.
With the "Denon 2016 AVR Remote" app you can control the receiver's operation and even control your connected Denon Blu-ray player. With the HEOS app you easily command your music and multi-room streaming.
Store your preferred set-up and sound mode for every source, so that you can jump right to them by the push of a button on the front panel and the remote control.
Experience extraordinary sound quality from both music and movies.
The AVR owns a sophisticated DSP audio processing system that incorporates no less than 4 powerful high speed fourth generation SHARC DSP processors, which together have a combined continuous processing capability of 10 GFLOPS (10 billion floating point numerical computations per second).
The AVR-X6400H features high resolution audio decoding with multiple lossless file types including ALAC, FLAC and WAV at up to 24-bit/196-kHz along with compatibility for 2.8/5.6-MHz DSD files (DSD is the audio coding format of SACD).
AL32 Processing Multi-channel provides ultra-high-resolution digital audio filtering and precision for all audio channels, to deliver a natural soundstage with enhanced imaging. For contents recorded in multi-channel such as Blu-ray discs, the recorded low frequency effects (LFE) may be out of synch and delayed. Bass Sync technology corrects such a delay of low frequency effects for the perfect audio experience.
For optimum fidelity and the widest dynamic range with lowest distortion, the AVR-X6400H features advanced reference-class 32-bit AKM AK4458VN D/A converters on all channels. This ensures consistent high fidelity and precise channel matching across all channels for the ultimate listening experience.
Roon transforms the experience of browsing music. Access Roon for your Denon product to browse artist photos, credits, bios, reviews, lyrics, tour dates, and composers. Easily build a surfable, searchable digital magazine about your music collection. And Roon finds all the same links between your personal files and the millions of tracks available on TIDAL, so you can start with the music you know, then explore and discover new music from the world beyond your collection.Learn More
Enjoy effortless voice control and total flexibility from the leading voice agents. Speak commands with Amazon Alexa , Google Assistant, Apple Siri and high-end smart home automation, Josh.ai. Ask to play your favorite music, turn the volume up, skip to the next track, switch inputs and more. Switch between voice agents, or pick a favorite to use — the choice is yours. Functionality varies by voice agent.
Use your voice to stream your favorite music services to this HEOS-enabled device. Ask Alexa to play music from Pandora, Amazon Music and much more. Switch between inputs (Blu-ray, DVD, Media Player, etc.), turn volume up or down, pause, mute and play the next song — all with your voice.
To start streaming with Alexa voice commands, open the Alexa app and select “Skills.” Add HEOS Home Entertainment to enable. Then, go to Smart Home in the Alexa app menu and choose Devices and Discover or say “Alexa, discover my devices.”
With HEOS Home Entertainment and Alexa, you can stream to this product and any other HEOS-enabled device.
Ask your Google Home, Google app or other devices with Google Assistant built-in to control content across your listening environment. Start music in the HEOS app, then ask your Google Assistant to control volume, play, pause, skip tracks and more. ‘Works with the Google Assistant’ feature is always improving — further enhancements arrive in 2019.Learn More
Stream audio from your favorite music services like Apple Music and Spotify or watch videos from services like Youtube and Netflix from any iPhone, iPad, Mac or Apple TV and hear the audio perfectly synced to your speakers Airplay 2 sources.
Airplay 2 also supports multi-room audio – wirelessly stream content to multiple AirPlay 2 compatible devices simultaneously with improved audio buffering to ensure smooth audio playback. AirPlay 2 provides control and grouping of compatible audio devices within the Apple Music or Home app. Use Airplay 2 in-app or with your voice via Siri.Learn More
An elevated voice agent for the high-end smart home, Josh.ai offers flexible voice control for nearly any aspect of your day-to-day experience and entertainment environment. Use voice commands to control the thermostat, lights, home appliances, speakers, AVR and more. Josh.ai is installed by custom integrators and accessed through an app on your phone or tablet. Works with iOS and Android devices.Learn More
Enjoy your favorite music anywhere – and everywhere – around your home. Share music stored on your home network, Internet radio or streaming services with HEOS wireless speakers, or even other HEOS-capable receivers, throughout the house. Control it all with the free HEOS app. Enjoy music from TuneIn, Internet Radio and a wide range of streaming services including Pandora®, Spotify®, Amazon Prime Music, iHeartRadio, SiriusXM, Soundcloud®, Tidal, Napster or Deezer.
The AVR-X6400H's built-in HEOS technology allows you to stream your favorite music wirelessly around your home to any other HEOS speaker.
HEOS 1: Ideal for damp environments or outdoors.
The AVR-X6400H is part of Denon's range of IN·Command series of custom integration friendly AV components, equipped with a range of features to provide enhanced control capabilities and compatibility with 3rd party and custom integration solutions.
The AVR-X6400H features IP control capability for an integration with major 3rd party control devices and Control4 SDDP (Simple Device Detection Protocol) certification for quick and easy integration with Control4 home automation equipment. For direct connection to external home automation and control equipment, it's also equipped with an RS-232C serial port.
For simpler integrated control set-ups, the AVR-X6400H features an IR (infrared) remote control input on the rear panel, allowing remote control compatibility with other components in your home theater system.