Denon AVR-X6400H vs Onkyo TX-RZ840

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Votes 1 1
Rating 5 5

AVR-X6400H vs TX-RZ840 comparison chart

Denon AVR-X6400H vs Onkyo TX-RZ840 review

Denon AVR-X6400H
vs
Onkyo TX-RZ840

Review of Denon AVR-X6400H versus Onkyo TX-RZ840 will reveal the best features offered by the devices. According to the results of our review, Denon AVR-X6400H received 9.4 points out of 10 possible, and Onkyo TX-RZ840 was rated 8.4 points. The release date of AVR-X6400H is 2017, and TX-RZ840 is 2019. AVR-X6400H is better suited for home theater use than the TX-RZ840. Its sound profile is better balanced.

Main advantages Denon AVR-X6400H over Onkyo TX-RZ840

  • More channels, namely 11, makes this receiver more profitable than its 9-channel competitor.

Main advantages Onkyo TX-RZ840 over Denon AVR-X6400H

  • We do not know advantages

Amplifiers

For the built-in amplifier, the devices received different marks - 10 and 8, respectively, on a 10-point scale.

AVR-X6400H
10
TX-RZ840
8

The number of channels is equal to the number of possible connected speakers. The Denon AVR-X6400H supports 11.2-channels sound, but Onkyo TX-RZ840 supports a 9.2-channels configuration.

RMS stands for the actual power of the receiver. The higher this value, the louder the sound can be produced. The differences between the models in terms of RMS power are significant - for the AVR-X6400H this value is 250/6 W/Ohm, and for the TX-RZ840 it is 180/6 W/Ohm.

AVR-X6400H TX-RZ840
Channels11.29.2
Stereo power (RMS), W/Ohm140/8, 250/6180/6
Output impedance, Ohm8, 66
Frequency response10Hz-100KHz10Hz-100KHz
THD in stereo, %0.050.08

Audio features

After reviewing the audio features of each model, we can rate the AVR-X6400H 10 out of 10, and the TX-RZ840 - 9.

AVR-X6400H
10
TX-RZ840
9

Most receivers now come with a microphone included. It is with the help of this microphone that the auto-calibration system functions, which adjusts the sound of the receiver to the room.

Speaker A/B switching allows you to change between the main and sub speaker set. Denon AVR-X6400H can work with the main and additional set of speakers - and switch between them.

AVR-X6400H TX-RZ840
Digital to analog converter (DAC)AK4458 384 KHz/32-bitAKM 384 KHz/32-bit
Bi-amping
Pure direct (straight)
Auto speaker calibrationAudyssey MultEQ XT32AccuEQ
Speaker A/B switching
Other audio featuresAudyssey Dynamic Volume, Audyssey Dynamic EQ, Audyssey LFCAdvanced Music Optimizer, Theater-Dimensional, Hi-Res audio

Connectivity

The connectivity of competitors in our comparison is equal and was rated 8 out of 10.

AVR-X6400H
8
TX-RZ840
8

Bluetooth connection is now one of the main communication protocols for the receiver's control or even music broadcasting.

AVR-X6400H TX-RZ840
Wi-Fi
USB1 (USB 2.0)1 (USB 2.0)
Bluetooth
Ethernet (RJ45)11
DLNA
MHL

Streaming services

Now music streaming services are gaining more and more popularity. They allow users to listen to millions of songs by subscription.

AVR-X6400H TX-RZ840
Apple Music (AirPlay)AirPlay, AirPlay 2AirPlay, AirPlay 2
Amazon Music
Spotify
Other streaming servicesDeezer, TIDAL, Pandora, Napster, SiriusXM, TuneIn Radio, iHeart Radio, Sound CloudDeezer, TIDAL, Pandora, TuneIn Radio

Extensive connections

The presence of many connectors makes the receiver more versatile. But there are also narrowly targeted models, the number of connectors which are limited to a certain area of use. And when choosing their own receiver, users need to consider exactly your goals for using the receiver. For extensive connection, Denon AVR-X6400H got 10 points, but Onkyo TX-RZ840 received 8 points.

AVR-X6400H
10
TX-RZ840
8

Denon AVR-X6400H is equipped with 8/3 HDMI inputs and outputs, and Onkyo TX-RZ840 has 7/2 HDMI inputs and outputs.

AVR-X6400H TX-RZ840
HDMI input/output8/37/2
HDMI ARC (Audio Return Channel)
HDMI eARC (Enhanced Audio Return Channel)
HDMI CEC
Digital content protection (HDCP)HDCP 2.2HDCP 2.2
Subwoofer output (LFE)22
Headphone output1 x 6.31 x 6.3
Optical digital input21
Coaxial digital input21
Composite input52
Component input/output2/11/0
Phono (MM) input
Front panel connectorsUSB, HDMI, phones, setup mic, AUXHDMI, phones, setup mic
Multi channel preamp output

Video features

The AV receiver is the heart of the home theater. And in this case, support for all current video formats ensures the best user experience, so it is very important to consider this when choosing a device. Video features of the AVR-X6400H were rated 9 out of 10 against the 8 for the TX-RZ840.

AVR-X6400H
9
TX-RZ840
8

Most of the AV receivers have a video scaling function, it is the process of reformatting the video signal to a higher resolution without losing the quality of the image. Upscaling the video signal resolution is possible only with Denon AVR-X6400H.

AVR-X6400H TX-RZ840
HDR (High Dynamic Range)HDR10
4K signal pass-through4K/60Hz4K/60Hz
8K signal pass-through
HDMI signal pass-through
3D signal pass-through
HDMI pass-through in standby mode
Video conversionanalog to HDMIanalog to HDMI
Analog to HDMI scaling
HDMI to HDMI scaling
Dolby Vision
Other video featuresHLGDeepColor, x.v.Color, HLG, BT.2020

Additional features

In terms of evaluating additional features, the AVR-X6400H got 10 points, but the TX-RZ840 has 9.

AVR-X6400H
10
TX-RZ840
9

Only the Denon AVR-X6400H has the ECO mode.

AVR-X6400H TX-RZ840
Voice controlAmazon Alexa, Google Assistant, Siri, Josh.AIGoogle Assistant
App controliPhone, iPad, iPod, Android, Amazon KindleiPhone, iPad, iPod, Android
Displaycolour OSDfluorescent
TunerAM, FMAM, FM
Sleep timer
Auto power off
ECO mode
Graphical user interface (GUI)
Setup assistant
Firmware updatenetwork, USBnetwork, USB
Other additional featuresIP ControlIP Control

Multi-room

As the center of a home media system, each multichannel receiver has an additional set of terminals for connecting the second set of speakers to create additional audio space in Zone 2 or even Zone 3 where audio can have the separate source.

AVR-X6400H TX-RZ840
Multi-room zones33
Zone audio outputspeaker, preoutspeaker, preout
Zone HDMI output
Multi-room controlHEOS App, Denon 2016 AVR RemoteFlareConnect
RS-23211
Remote control input/output (IR)1/11/0
DC trigger output (12V)21

Multichannel surround

Denon AVR-X6400H got 9 points for the multichannel surround sound and Onkyo TX-RZ840 got 8.

AVR-X6400H
9
TX-RZ840
8

Auro 3D gives a bit more versatility than Dolby Atmos or DTS:X and provides a hemispherical sound and enables a receiver to produce 3D sound stages. Only the Denon AVR-X6400H has Auro-3D on its feature list.

IMAX Enhanced is a licensing and certification program under which home theater devices deliver crisp 4K HDR pictures and powerful sound as it was designed by the IMAX engineers. The TX-RZ840 licensed by IMAX.

AVR-X6400H TX-RZ840
Dolby Atmos
Dolby TrueHD
Dolby Surround
Dolby (other)Dolby Digital PlusDolby Digital Plus, Dolby Atmos Height Virtualization
DTS:X
DTS HD Master
DTS Virtual:X
DTS Neural:X
DTS (other)DTS-ES, DTS 96/24, DTS-EXPRESS, DTS SurroundDTS-ES, DTS 96/24, DTS-HD, DTS-EXPRESS
Auro-3D
IMAX Enhanced
Multichannel stereo
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