Denon AVR-X6400H 11.2 Channel Audio/Video Receiver with Wi-Fi, Dolby Atmos, DTS:X, and HEOS

Denon AVR-X6400H 11.2 Channel Audio/Video Receiver with Wi-Fi, Dolby Atmos, DTS:X, and HEOS

Home Theater Receivers

Denon AVR-X6400H 11.2 Channel Audio/Video Receiver    The Denon AVR-X6400H, which features Dolby Atmos, DTS:X, and Auro 3D surround decoding, is...

$ 2,199.00
sold out

Denon AVR-X6400H 11.2 Channel Audio/Video Receiver 


The Denon AVR-X6400H, which features Dolby Atmos, DTS:X, and Auro 3D surround decoding, is the first Denon AV receiver with 11 channels of amplification built-in. Dolby Atmos and DTS:X feature object-based surround sound with the ability to drive overhead speakers to deliver the ultimate immersive 3D audio experience.

The AVR-X6400H’s 11-amplifier design means all this can be delivered without any need for external amplification, even when running four overhead speakers in 7.1.4 configuration. Auro 3D is also supported.

Ready for the future of home cinema sound and vision, the AVR-X6400H’s advanced video section is fully compatible with the latest HDMI 2.0a and HDCP 2.2 specifications on all 8 HDMI inputs, with support for 4K Ultra HD 60Hz video, 4:4:4 Pure Color sub-sampling, High Dynamic Range (HDR), 21:9 video, 3D, and BT.2020 passthrough support. That means it’s ready for 4K Ultra HD Blu-ray disc players, set-top boxes, and other 4K Ultra HD sources, and it can also upscale standard and high definition analog and digital video content to 4K Ultra HD, making the most of legacy sources. Dolby Vision compatibility is newly supported, too. HLG (Hybrid Log Gamma) passthrough is supported for coming HDR broadcasting contents. eARC (Enhanced Audio Return Channel) willl be supported via firmware update.

Full wireless connectivity is provided via both Wi-Fi and Bluetooth, Apple Airplay is supported for music streaming, and built-in HEOS wireless multi-room audio technology allows the AVR-X6400H to become the heart of a whole-house wireless multi-room music network. HEOS lets you enjoy your favorite music anywhere and everywhere around your home, meaning you can explore, browse, and play music from your own music library, from online streaming music services, and from thousands of Internet Radio stations using "HEOS" app. It’s all controlled from the free “HEOS” app, available for smartphones and tablets, and high resolution audio formats are fully supported for incredible fidelity.

As well as the HEOS app, the "Denon 2016 AVR Remote" app is also available free from the Apple app store, GooglePlay and the Amazon appstore for your smartphone or tablet. 

Built using all of Denon’s audio expertise, the powerful 11-channel amplifier section features custom made discrete monolithic amplifiers with DHCT (Denon High Current Transistors), with each channel of identical design, and rated at 140 watts per channel (8 ohms, THD0.05%, 20Hz~20kHz). The high current design means the AVR-X6400H has no problem with difficult speaker loads: it can even drive lower impedance 4 ohm speakers on all channels.




  • - 11.2 channel AV Receiver with 140W per channel; 11.2ch processing > 11 powerful amplifiers for an ultimate 3D audio performance with Denon sound
  • - Monolithic amplifier design with Denon custom-made transistors > Ultimate build-quality for reference-class audio experience
  • - Built-in Wi-Fi with 2.4GHz/5GHz dual band support; built-in Bluetooth > Solid network connectivity especially in Wi-Fi-crowded homes
  • - 4K/60 Hz full-rate passthrough, 4:4:4 color resolution, HDR, BT.2020, Dolby Vision and HLG (Hybrid Log Gamma) passthrough > Latest HDMI standard for future-proof compatibility
  • - 8 HDMI inputs (incl. 1 front) with full HDCP 2.2 support; 3 HDMI outputs > Plenty of inputs for your digital devices; different video in different rooms
  • - eARC (Enhanced Audio Retun Channel) support via firmware update > eARC supports the most advanced audio formats such as Dolby Atmos and DTS:X via single HDMI connection between AVRs and compatible TVs
  • - Advanced Video Processing with analog to HDMI conversion and full rate 4K Scaling > Full HD and even Ultra HD video quality from existing DVDs or analogue sources
  • - Dolby Atmos (up to 7.1.4 ), DTS:X and Auro-3D > Full 3D sound options without the need of external amplification
  • - Built-in HEOS Wireless Multi-Room Audio Technology > Enjoy your music in your whole house with more HEOS products
  • - AirPlay, Bluetooth, Internet Radio, Spotify Connect, Pandora, SiriusXM, Napster, Amazon, Music, TIDAL, Deezer, Network Audio Streaming > Access to almost unlimited online music sources
  • - DSD (2.8/5.6MHz), FLAC, ALAC and WAV support > High Resolution audio streaming for HiFi enthusiasts even in Gapless
  • - Audyssey MultEQ XT32 with SubEQ, LFC, Dynamic Volume, Dynamic EQ > Delivering ultimate equalization for your individual room including subwoofer EQ
  • - Advanced multi-room options; 11.2ch Pre-out; RS232 Control > Audio and video in multiple rooms; ready for 3rd Party Home Automation systems
  • - Monolithic amplifier design with identical quality and power for all 11 channels (140 watts per channel)
  • - D.D.S.C.-HD Digital and AL32 multi channel processing; Denon Link HD
  • - Audyssey Dynamic Volume, for real-time volume adjustment
  • - Audyssey DynamicEQ, improves surround effects during low volume levels
  • - High-grade audio components
  • - High-performance 192kHz/32-bit D/A converters for all channels
  • - Multi-source/Multi-room (2nd and 3rd zone via speaker terminal or zone pre-out)
  • - Optimized Bass redirection, for powerful bass performance in configurations without subwoofer
  • - Clock jitter reducer
  • - Intelligent ECO mode with off/on/auto setting
  • - Horizontal color-coded layout of speaker terminals for easy connection
  • - Label sheet for marking speaker wires & HDMI cables
  • - Comes with easy-to-use preset remote control handset
  • - Setup assistant, providing easy-to-follow setup instructions, and Advanced Graphical User Interface
  • - Denon AVR Remote for iOS, Android and Kindle
  • - 4 Quick Select buttons - can be used to store favorite sources, internet radio stations and preferred settings
  • - RS232C for custom installation purpose
  • - Standby HDMI passthrough
  • - Auto standby and low power consumption at stand-by 0.1W
  • - Smart TV connectivity


HEOS Wireless Multi-Room Music Streaming, Controlled by Free HEOS App

Built-in HEOS technology allows the AVR-X6400H to become part of the HEOS wireless multi-room system, allowing you to 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. And it's all controlled by the free HEOS app, installed on as many smartphones and tablets as you like! The app gives you instant multi-room audio control, meaning you can command music in every room from any device: play different music from different sources in every room, group several rooms together and play the same song.

The HEOS app puts multiple streaming services in the palm of your hand, ready to play on your AVR or any devices on your HEOS network! Enjoy music from Pandora, Spotify, TuneIn Internet radio, Amazon Music Unlimited, iHeart Radio, Sirius XM, Sound Cloud, Tidal, Napster, or Deezer, or use the HEOS app to stream tunes or whole albums from your phone, USB stick, or computers and NAS drives on your home network. Whatever you want to hear, access it directly from the HEOS app, complete with support for favorites and playlist functions.

Dolby Atmos

Dolby's revolutionary Dolby Atmos technology dispenses with the channel-based surround sound coding used for decades, in favor of advanced object-based coding, giving the sound designer the ability to place sounds precisely anywhere in the three-dimensional soundspace. Now you can enjoy this award-winning technology at home with the AVR-X6400H, which features the ability to connect a 7.1 surround sound speaker system and 2 additional overhead speakers or Dolby Atmos-certified elevation speakers, or a 5.1 surround speaker system and 4 additional overhead or Dolby Atmos elevation speakers, for the ultimate home theater experience.


The latest immersive surround sound system, DTS:X features similar object-based audio coding, and provides for overhead speakers to deliver a stunning surround sound experience. Even without Dolby Atmos or DTS:X encoded content, the AVR-X6400H supports both Dolby Surround and Neural:X upmixing technologies: users with a '3D' sound speaker setup are able to get an enhanced surround experience from conventional Dolby - or DTS-encoded content, or even music in stereo, using the full set of speakers installed in the listening room.


By fully immersing the listener in a cocoon of life-like sound, Auro-3D puts you right in the middle of the action. Auro-3D provides an immersive surround sound experience thanks to dedicated height and overhead channels, in addition to the regular channels. The height information, captured in recording or created during the mixing process, is mixed into a standard 5.1 PCM stream that comes with a regular Blu-ray. Moreover, the Auro-3D Engine combines different technologies to guarantee an optimum 3D sound experience generated both natively and from existing audio content. It recognizes mono, stereo, 5.1 surround, or an Auro-encoded signal and transforms them into 3D audio. the Auro-Codec decoder, the Denon AVR-X6400H is capable of decoding the original Auro-3D mix and playing back an Auro-3D 9.1 or 10.1 channel configuration (with external amplifier). 

Latest HDMI 2.0a Connectivity; HDCP 2.2 Compatible; ISF-Certified

Prepared for the future, with no fewer than eight HDMI inputs (including one conveniently located on the front panel) and three HDMI outputs, the AVR-X6400H's advanced video section features 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 on every input. It also features HDCP 2.2 compatibility, a requirement for 4K Ultra HD copy-protected content, ensuring ready for the next generation of Blu-ray disc players, set-top boxes, and other 4K Ultra HD sources. In addition, the video processor can also upscale analog and digital SD and HD video to 4K Ultra HD. Dolby Vision pass-through is newly supported so that you can enjoy striking contrasts, briliant colors with compatible displays and contents. HLG (Hybrid Log Gamma), HDR format for broadcasting, is also supported.

Certified by the Imaging Science Foundation, the AVR-X6400H features a full suite of video calibration controls (for use by an ISF technician), along with ISF Day and ISF Night video modes.

eARC Object-Based Audio Support

eARC (Enhanced Audio Return Channel) supports object-based audio from your TV to the AVR. With the AVR-X3400H, you can enjoy Dolby Atmos or DTS:X from your TV apps with a single HDMI connection for the simplest setup.

Denon Link HD; Denon AL32 Multi Channel Processing; 11-Channel Monolithic Amplification

As you’d expect from Denon, the AVR-X6400H is designed to deliver extraordinary sound quality from both music and movies, and uses a range of exclusive audio technologies to achieve this. Connect it to a Denon Blu-ray player with the exclusive Denon Link HD system, and a dedicated path for the critical master clock data eliminates any distortion caused by jitter errors in the main data stream. Downstream of that, Denon's exclusive AL32 Multi Channel processing provides ultra high resolution digital audio filtering along with precision noise shaping on all of the audio channels to deliver shimmering detail in the highs, along with smooth natural midrange and a broad soundstage with improved imaging. And the power amplification plays a major part, too: the 11 power amp channels – a first for a Denon receiver – combine a discrete monolithic design and solid build quality, enabling the AVR-X6400H to deliver superb audio performance.

Powerful DSP

In order to properly handle the multitude of advanced digital audio decoding and processing functions, the AVR-X6400H features 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).

Discover the incredible fidelity of high resolution audio tracks with the AVR-X6400H's ability to decode up to 24-bit/192-kHz lossless files (FLAC and WAV; ALAC/Apple Lossless, as well as DSD 2.8MHz (the audiophile format of SACD) and now 5.6MHz tracks, too. Play them from memory devices via the front panel USB, or from network sources – the AVR-X6400H will also play lossy file types such as MP3 and WMA.

Built-In Bluetooth, Wi-Fi, and AirPlay Capability

Featuring Bluetooth and Wi-Fi wireless streaming connectivity, the AVR-X6400H is equipped with an advanced dual antenna system for robust and error-free streaming even in congested urban environments. Connected to the Internet through your home Wi-Fi network (or with a hard-wired connection via the RJ-45 Ethernet LAN port), it allows you to enjoy your favorite tracks from streaming music services such as Spotify Connect. You can also choose from thousands of Internet Radio stations from around the world, and enjoy music and speech entertainment of virtually every genre.

AirPlay lets you play your favorite tracks wirelessly from your iPod touch, iPhone, or iPad, and via network streaming you can listen to music files stored on your home PC or Mac, or NAS devices.

Denon 2016 AVR Remote

With the free "Denon 2016 AVR Remote" for iOS, Android and Kindle Fire, available from the Apple Appstore, Google Play, or the Amazon Appstore, you can control the receiver's operation, as well as accessing its setup menu, from a smartphone or tablet. The app also gives you quick access to the receiver's status display, option menus, Denon Blu-ray player control, and an online owner's manual for your convenience. Inside the app, you can switch instantly to the HEOS App to access an incredible level of control over your music contents and streaming services, blast full HEOS wireless multi-room control.

Powerful 11 Channel Discrete Amplifier with ECO Mode

The AVR-X6400H features a monolithic power amplifier design with Denon custom-made transistors and identical circuit topology on all 11 channels. Each channel is rated at 140 watts (8 ohms, 20Hz~20kHz, 0.05%THD) and all channels are able to safely drive lower impedance speakers (down to 4 ohms). This ultimate build-quality guarantees best-in-class sound quality with minimum interferences, astonishing clarity, power, detail, and depth. Moreover, the 11 channel amplification allows for setting up a full 7.1.4 3D experience without the need of an external amplifier. If not in use for 3D audio, the integrated amplifiers can get assigned to drive another pair of speakers in a second audio zone running a different source than the main room. Denon's intelligent ECO mode adjusts power consumption according to signal level, and there's an on-screen Eco Mode display that lets you see in real time how much energy ECO mode is saving.

Dual Subwoofer Outputs

A single subwoofer can give an uneven bass response at the main listening position, with audible peaks and dips. The AVR-X6400H provides for two subwoofers: positioned in different locations, they will even out the low frequencies, for more accurate bass anywhere in the listening area. It also provides Audyssey Sub EQ HT to give individual tailoring of each subwoofer via digital signal processing. 

Most Advanced Audyssey Room Correction Suite

Equipped with the full Audyssey Platinum suite of advanced DSP algorithms, the AVR-X6400H features Audyssey MultEQ XT32 automatic room acoustic correction. With the supplied measurement microphone, MultEQ XT32 analyzes each speaker's output (including the subwoofers) at up to 8 measurement locations and generates precision digital filters that optimize each channel for the correct frequency and time domain response.

Audyssey Dynamic Volume smoothes out annoying jumps in volume (such as TV commercials), letting you listen at lower levels and still enjoy clear dialog, music, and sound effects. Audyssey Dynamic EQ provides precision tonal tailoring for full range clarity at any listening level. Audyssey Low Frequency Containment uses advanced psychoacoustic algorithms to deliver a full range tonal balance, including deep bass, but without disturbing close-by neighbors or family members in other rooms, and features a multi-step adjustment that lets you dial in the amount of containment to your preference.

Audyssey Sub EQ HT provides individual DSP tailoring of each subwoofer in a dual subwoofer setup, for deeper bass with improved definition, compared to a single subwoofer configuration.

Wired Multi-Source/Multi-Zone Support

You can enjoy your favorite movie in the main room, while others enjoy stereo sound from different sources in 2 other rooms. The AVR-X6400H is equipped with speaker connections, as well as pre-amp outputs for a 2nd zone and 3rd zone. There's also a dedicated HDMI output for 2nd zone audio and video so you can watch and enjoy 2 different video sources at the same time.

Easy To Set Up, Easy To Use

The AVR-X6400H's clear, easy-to-understand graphical on-screen display guides you through the setup process to ensure the correct configuration. The exclusive Setup Assistant and the included Quick Start Guide together provide easy setup instructions, leading the user step-by-step to optimize critical settings for the best possible sound and video quality with the rest of your system.

Easy-To-Use Quick Select Functions

Four Quick Select function buttons on the front panel and the remote control let you choose your favorite sources: each one remembers your preferred setup and sound mode for that source, and you can even use them to store favorite Internet Radio stations.

Convenient USB Port

With the convenient front panel USB port, you can connect a USB drive and listen to files from MP3 all the way up to high resolution DSD (2.8/5.6 MHz), and lossless FLAC lossless (up to 24-bit/192-kHz).

Color-Coded 4-Way Speaker Terminals

The high quality speaker terminals feature multi-way connection capability to handle a number of speaker cable terminations, including banana plugs. They're also color-coded for correct hook-up, with matching color-coded labels for your speaker cables supplied.

External Control and IP Control Capabilities

As part of Denon's IN·Command series of custom-integration-friendly AV components, the AVR-X6400H is equipped with a range of features that provide enhanced control capabilities and compatibility with 3rd party and custom integration solutions.

For remote control compatibility with other components in your home theater system, the AVR-X6400H features an IR (infrared) remote control input and remote control output on the rear panel, along with dual 12V trigger outputs. For direct connection to external home automation and control equipment, the AVR-X6400H is equipped with an RS-232C serial port.

The AVR-X6400H also features Control4 SDDP (Simple Device Detection Protocol) and Crestron Connected certification for quick and easy integration with Control4 and Crestron home automation equipment.




  • - Rated Output
    • - Front
      • - 140W + 140W (8Ω/ohms, 20Hz - 20kHz with 0.05% THD)
      • - 175W + 175W (6Ω/ohms, 1kHz with 0.7% THD)
    • - Center
      • - 140W (8Ω/ohms, 20Hz - 20kHz with 0.05% THD)
      • - 175W (6Ω/ohms, 1kHz with 0.7% THD)
    • - Surround
      • - 140W + 140W (8Ω/ohms, 20Hz - 20kHz with 0.05% THD)
      • - 175W + 175W (6Ω/ohms, 1kHz with 0.7% THD)
    • - Surround back/Height1/Height2
      • - 140W + 140W (8Ω/ohms, 20Hz - 20kHz with 0.05% THD)
      • - 175W + 175W (6Ω/ohms, 1kHz with 0.7% THD)
  • - Dynamic power
    • - 160W x 2-channel (8Ω/ohms)
    • - 250W x 2-channel (4Ω/ohms)
  • - Output connectors: 4 - 16Ω/ohms
  • - Analog specifications
    • - Input sensitivity: 200mV
    • - Frequency response: 10Hz - 100kHz -+1, -3dB (Direct mode)
    • - S/N: 102dB (IHF-A weighted, Direct mode)
    • - Distortion: 0.005% (20Hz - 20kHz) (Direct mode)
    • - Rated output: 1.2V
  • - Digital specifications
    • - D/A output
      • - Rated output: 2V (at 0dB playback)
      • - Total harmonic distortion - 0.008% (1kHz, at 0dB)
      • - S/N ratio: 102dB
      • - Dynamic range: 100dB
    • - Digital input format: Digital audio interface
  • - Phono equalizer
    • - Input sensitivity: 2.5mV
    • - RIAA deviation: ±1dB (20Hz to 20kHz)
    • - S/N: 74dB (IHF-A)
    • - Distortion factor: 0.03% (1kHz, 3V)
  • - Standard video connectors
    • - Input/output level and impedance: 1vP-p, 75Ω/ohms
    • - Frequency response: 5Hz - 10MHz - 0, -3dB
  • - Color component video connector
    • - Input/output level and impedance
      • - Y signal: 1Vp-p, 75Ω/ohms
      • - PB/CB signal: 0.7 VP-p, 75Ω/ohms
      • - PR/CR signal: 0.7Vp-p, 75Ω/ohms
    • - Frequency response: 5Hz - 10MHz - 0, -3dB
  • - Tuner reception frequency range
    • - FM: 87.5MHz - 107.9MHz
    • - AM: 520kHz - 1710kHz
  • - Effective sensitivity
    • - FM: 1.2μV (12.8dBf)
    • - AM: 18μV
  • - 50dB sensitivity: MONO: 2.8μV (20.2dBf)
  • - S/N ratio
    • - MONO: 70dB (IHF-A weighted, Direct mode)
    • - STEREO: 67dB (IHF-A weighted, Direct Mode
  • - Distortion
    • - MONO: 0.7% (1kHz)
    • - STEREO: 1% (1kHz)
  • - Network type (wireless LAN standard): Conforming to IEEE 802.11a/b/g/n (Wi-Fi compliant)
  • - Security
    • - WEP 64 bit, WEP 128 bit
    • - WPA/WPA2-PSK (AES)
    • - WPA/WPA2-PSK (TKIP)
  • - Used frequency range: 2.4GHz, 5GHz
  • - Bluetooth communications system: Version 3.0 + Enhanced Data Rate
  • - Transmission power: Bluetooth specification power class 1
  • - Maximum communication range: Approximately 98.4 feet
  • - Used frequency range: 2.4GHz
  • - Modulation scheme: Frequency-Hopping Spread Spectrum
  • - Supported profiles
    • - A2DP (Advanced Audio Distribution Profile) 1.2
    • - AVRCP (Audio Video Remote Control Profile) 1.5
    • - Corresponding codec: SBC
    • - Transmission range (A2DP): 20Hz - 20,000Hz
  • - Power supply: AC 120V, 60Hz
  • - Power consumption: 750W
  • - Power consumption in standby mode: 0.1W
  • - Power consumption in CEC standby mode: 0.5W