Denon AVR-X6400H 11.2 Receiver with Dolby Atmos, DTS-X, Auro-3D + 4K
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This is a higher-end Denon AVR-X6400H IN-Command 11.2-channel home theater receiver, featuring Wi-Fi, Dolby Atmos, DTS-X, Auro 3D, Apple AirPlay 2, and HEOS. Tons of features and compatible services that are outlined below and on the informational sheet link. Like new with no signs of use or wear. Includes remote (missing cover), two WiFi/Bluetooth antennas, and the Audyssey MultEQ® XT32 calibration microphone. $2200 MSRP From a What HI-Fi Review:• Excellent clarity and detail• Fluid dynamics and rhythms• Accurate timing• Refined character• Exhaustive features and connections VerdictDenon has gone to great pains to ensure anyone buying its £2300 AV receiver isn’t left wanting when it comes to the latest film and music playback technologies.But extensive features aside, what really impresses us is how articulate, rhythmically precise and musical this AV receiver sounds. It’s punchy enough and fully exciting, but we love how it gives
This is a higher-end Denon AVR-X6400H IN-Command 11.2-channel home theater receiver, featuring Wi-Fi, Dolby Atmos, DTS-X, Auro 3D, Apple AirPlay 2, and HEOS.
Tons of features and compatible services that are outlined below and on the informational sheet link. Like new with no signs of use or wear. Includes remote (missing cover), two WiFi/Bluetooth antennas, and the Audyssey MultEQ® XT32 calibration microphone. $2200 MSRP
From a What HI-Fi Review:• Excellent clarity and detail• Fluid dynamics and rhythms• Accurate timing• Refined character• Exhaustive features and connections
VerdictDenon has gone to great pains to ensure anyone buying its £2300 AV receiver isn’t left wanting when it comes to the latest film and music playback technologies.But extensive features aside, what really impresses us is how articulate, rhythmically precise and musical this AV receiver sounds. It’s punchy enough and fully exciting, but we love how it gives importance to the subtler aspects of sound quality.A terrific performer, this Denon AVR-X6400H would be a worthy addition to virtually anyone's home cinema room.
AVR-X6400H 11.2-Channel Home Theater Receiver - Information Sheet
AVR-X6400H 11.2-Channel Home Theater Receiver - Full Manual
Rediscover home theaterIf it's been a while since your last home theater receiver purchase, we think you'll be impressed with Denon's AVR-X6400H. With 11 amplifier channels, this high-performance home theater machine gives you super-flexible surround sound and multi-room music and video options.This receiver passes 4K sources, including those encoded with HDR information to your 4K TV, and it even upscales HD and standard definition video to 4K resolution. Stream music from different sources and enjoy high-resolution music in your living room — or any room of your house — thanks to built-in HEOS technology.Multi-zone music and videoThe 'X6400H's 11-channel amplifier gives you extra flexibility to expand your system into other rooms of your house, and/or set up an immersive Dolby Atmos or DTS:X surround sound system. In your living room, you can have up to a nine-channel surround sound system, or 7.1.2-channel Atmos system, and you'll still have two leftover amplifier channels you can reassign to power a set of speakers outdoors or in another room.If you're happy using fewer channels in your home theater, this receiver can power speakers in two additional zones. Or the extra height channels can be used to bi-amp a pair of compatible front speakers for more powerful sound. A Zone 2 HDMI output lets you watch video from two separate sources in your living room and a second room.
Power and Processing:
11-channel amplifier
140 watts per channel into 8 ohms (20-20,000 Hz) at 0.05% THD, with 2 channels driven
Dolby® and DTS® surround sound decoding
Dolby Atmos processing for use with in-ceiling or height speakers for more enveloping surround sound
supports 5.2.2, 5.2.4, 7.2.2, and 7.2.4 Atmos setups with multiple placement patterns for height channels
DTS:X for an immersive, 3-dimensional soundstage
Auro-3D® built-in for three-dimensional soundfields with Auro-3D soundtrack mixes and a 9.1-channel speaker configuration
analog-to-HDMI video conversion
upscales standard-definition video signals to HD and Ultra HD (up to 4K)
built-in HEOS technology wirelessly connects compatible HEOS components for whole home audio
free HEOS app offers easy Wi-Fi control, settings adjustments, and music selection and playback
works with Alexa-compatible voice control assistants
Audyssey MultEQ® XT32 speaker calibration and system optimization includes:
MultEQ® XT32 auto setup and room calibration delivers balanced, dynamic sound with enhanced surround performance for as many as eight seating positions
Dynamic Volume anticipates loud sounds to keep volume levels even
Dynamic EQ improves dialogue, bass response, and surround channel levels at lower volumes
Sub EQ HT provides individual calibration for dual subwoofers, for even bass response throughout the room
Low Frequency Containment reduces the amount of bass that bleeds into other rooms
Audyssey MultEQ app for further audio customization (paid app; not included)
Digital and Streaming Music Options:
built-in Wi-Fi for listening to music from a networked PC, free internet radio, and music services
includes support for Pandora®, SiriusXM, and free internet radio streams with TuneIn (subscription required for some services)
Spotify Connect lets you play Spotify's streaming music library through the receiver via your smartphone or tablet (requires Spotify app and a premium subscription)
Apple AirPlay 2 lets you stream directly from an iPhone® or iPad® and ask Siri to play Apple Music
supports multi-room audio with compatible wireless speakers
built-in Bluetooth® for wireless music listening with smartphones, tablets, and compatible computers
plays high-resolution digital music files via USB storage device or a networked computer (PCM up to 24-bit/192kHz resolution; DSD up to 5.6 MHz)
Denon's Compressed Audio Restorer improves sound quality of MP3s and other digital music files
Multi-room Audio/Video:
three-room/three-source output
powered stereo outputs for second and third rooms allow playback in three rooms at once
amp assign feature lets you reassign extra surround channels to second and third zones
line-level outputs for Zones 2 and 3 for use with additional receiver, amplifier, or powered speakers
independent HDMI outputs for watching video content from different sources in two zones simultaneously
supports 2nd/3rd zone playback of digital sources (audio from HDMI sources is limited to Zones 1 and 2)
component and composite video outputs can be assigned to Zone 2
Connections:
HDMI audio/video switching: 8 in (includes 1 front-panel input), 3 out
HDCP 2.2 technology ensures compatibility with 4K Ultra HD sources and TVs (all HDMI inputs and outputs)
HDR-compatible for extended picture contrast and brightness with compatible 4K TVs and HDR-encoded content
supports HDR10 and Dolby Vision™
supports eARC with firmware update
component video switching: 2 in, 1 out (Zone 2)
composite video switching: 5 in, 2 out (includes 1 front-panel input)
digital audio inputs: 2 optical, 2 coaxial
7 analog stereo RCA audio inputs (includes 1 pair of front-panel inputs)
phono input for connecting a turntable
11.2-channel preamp outputs
two discrete line-level subwoofer outputs for more precise multi-subwoofer setups
front-panel USB port for audio playback from USB flash drives
Denon Link HD creates a jitter-free connection to compatible Denon Blu-ray players; requires HDMI connection and proprietary Denon Link RCA-style cable
Ethernet port for network connection
outputs for 11 speakers (Front L/R, Center, Surround L/R, Surround Back L/R, Height 1 L/R, Height 2 L/R)
RS-232C port for use with external controllers
IR in/out and 12-volt triggers
1/4 headphone jack
removable power cord
General Features:
4K/60p and 3D video pass-through
free Denon AVR Remote app lets you use your Apple or Android™ device as a Wi-Fi remote
Setup Assistant guides you through the initial connection process and settings
4 quick select function buttons for one-touch power-up, source selection and recall of volume and Audyssey configuration
HDMI standby pass-through allows HDMI switching without powering up receiver
support for third-party control systems by Control4 and Crestron for home automation
intuitive, full-color on-screen guide
bi-amp compatible front left and right speakers by reassigning height channels
AM/FM tuner
remote control
17-3/16W x 6-9/16H x 16-5/16D
weight: 31.9 lbs.
MFR # AVR-X6400H
The SkyFi Testing Process for Receivers:We start with a visual inspection of all internal components to make sure there are no signs of stress or aging. Capacitors are checked for telltale sings of bulging or leaking, resistors are checked for signs of overheating or cracking, and transistors are checked for signs of stress or damage. We then power up the unit carefully and run a simple 1k sine wave while monitoring the output on an oscilloscope for signs of distortion or noise. Finally, we run the receiver to its full rated power into the appropriate resistive load provided by our Sencore amplifier tester. If there is an issue, it will usually be noticeable at this point. If everything reads clean, we will often test for THD (Total Harmonic Distortion) measured by our Keithley distortion meter, and compare it against the original manufacturers specifications. The receiver then remains powered on to burn in on our test bench for a few hours to make sure there are no heat related issues. If there are balanced inputs available they will be also be tested.Final testing involves pushing actual music thorough the receiver. We've learned over time that some issues are only noticeable to a trained ear while listening to familiar source material. Our test bench has reference vintage KEF speakers that we're very familiar with which quickly reveal any discrepancies. Some receivers will then move into our listening room where they are tested with our in-house reference speakers of choice.
Please click here for detailed specifics regarding our specialized packing process that separates us from the rest.
Item
Included
Original Box
No
Manual
Online
Remote
Yes (Missing Cover)
Cables
Yes - Power
Physical Condition
8
Working Condition
10
![](https://assets.denon.com/Assets/images/ProdDesc/AVR-X6400_UK/slide/sliderHighlight01_eu.jpg)
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