Denon AVR-X6400H - Review and feature roundup by Ooberpad India

February 28, 2018
Denon AVR-X6400H - Review and feature roundup by Ooberpad India
Published on  Updated on  

Features of Denon AVR-X6400H AV Receiver

We’re looking at the Denon AVR-X6400H - 11.2 channel Full 4K Ultra HD Network A/V Receiver with Wi-Fi and Bluetooth. This AV Receiver delivers up to 200W per channel which is enough power to fill a room with Denon’s revered sound. The AVR features Dolby Atmos, DTS: X and Auro-3D for an unmatched surround sound experience for today’s immersive movie soundtracks. It brings home the same technology featured in high-end movie cinemas.

You can 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 theatre experience - including Dolby Surround upmixer for legacy content.

All about AVR-X6400H
The Denon AVR-X6400H AV receiver features 8 HDCP 2.2 compatible HDMI inputs including one conveniently located on the front panel which is sufficient to connect most of your audio video devices. The X6400H also adds a second HDMI output so you can connect your sources to two displays concurrently. It features composite inputs and output connectors for devices without HDMI. The AVR-X6400H also features optical inputs for crystal clear audio. Apart from an HDMI input, the front panel features a USB port, a 3.5mm input for the provided calibration microphone, a quarter inch jack input to connect headphones and set of RCA input connectors for quick Audio and Video connections.

The AVR-X6400H features physical operational buttons below the crystal clear control display. On the left-hand side of the front panel, it features a large source selection knob, while the right side has a large master volume control knob. The AV Receiver is equipped with an easy to use Remote control which has all the necessary buttons to take full control of the AVR. The AVR is also compatible with Denon's free to download app for iOS or Android smartphones.

The AVR-X6400H is futureproofed, thanks to the latest HDMI and HDCP 2.2 specifications on all 8 of its HDMI inputs. It has full support for 4K Ultra HD 60Hz video, 4:4:4 Pure Color sub-sampling, High Dynamic Range (HDR), support for up to 21:9 video, 3D, and BT.2020 pass-through support on every input. These features improve the overall movie watching experience. The AVR-X6400H is ready for next-generation Blu-ray disc players, set-top boxes and other 4K Ultra HD sources.


The Denon AVR-X6400H has built-in multiroom capability which allows you can enjoy two different sources in different rooms at the same time. This means you can watch a movie in superb surround sound in one room while other members of the family enjoy great-sounding stereo music in another part of the house. Interestingly, the AV receiver also features two HDMI outputs for added flexibility in multiroom connectivity. Another great feature of this AV Receiver is the availability of the Ethernet (LAN) port for internet connectivity or to connect to your local home theatre or media server.

Full wireless connectivity is provided by both WiFi and Bluetooth, with dual antennas to ensure robust signal transmission and reception. This allows you to stream your favourite music via AirPlay, Spotify Connect or via local network storage drives.The built-in HEOS technology allows the AVR-X6400H to become an app-controlled heart of a whole-house wireless multi-room sound network. The AVR-X6400H has two subwoofer outputs for an even, deep, and detailed low-frequency response.

Denon’s AVR-X6400H offers end-to-end High-Resolution Audio support and easily decodes up to 24-bit/192kHz of a variety of lossless audio file formats. The AVR features Audyssey MultEQ DSP technology suite that works with the provided calibration microphone. This system calibrates and corrects sonic discrepancies in real-time for a superior aural experience and a wide 'sweet spot' in the room.


The AVR-X6400H has bagged many awards such as the What Hi-Fi? Awards 2017, AV Tech Media Awards 2017, and Home Cinema Choice Best Buy Award. This premium 11.2 channel AV Surround Receiver sports a monolithic amplifier design, all 3D audio formats built-in, and unparalleled music playback options, thanks to Denon’s HEOS technology. Interestingly, Amazon’s Alexa voice assistant feature will be available in certain countries.

We have also done a video review of the features of the Denon AVR-X6400H Surround AVR on Ooberpad India's YouTube channel, be sure to check it out.


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