Denon AVR-X6400H vs Onkyo TX-SR494

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Votes 1 1
Rating 5 5

AVR-X6400H vs TX-SR494 comparison chart

Denon AVR-X6400H vs Onkyo TX-SR494 review

Denon AVR-X6400H
vs
Onkyo TX-SR494

Along with the growing popularity of custom home theater builds, the comparison of Denon AVR-X6400H and Onkyo TX-SR494 takes place. According to the results of our review, Denon AVR-X6400H received 9.4 points out of 10 possible, and Onkyo TX-SR494 was rated 5.5 points. The release date of AVR-X6400H is 2017, and TX-SR494 is 2019. Based on the data on the characteristics and features of both models, we can conclude that AVR-X6400H has better performance than TX-SR494.

Main advantages Denon AVR-X6400H over Onkyo TX-SR494

  • More channels, namely 11, makes this receiver more profitable than its 7-channel competitor.
  • Both receivers have a multi-room zone function, but AVR-X6400H has 3 zones vs 2 on its competitor.
  • There is WI-Fi support.
  • The Spotify support is an exclusive advantage.
  • There is support for Apple AirPlay.
  • Include HDMI eARC function.

Main advantages Onkyo TX-SR494 over Denon AVR-X6400H

  • We do not know advantages

Amplifiers

For the built-in amplifier, the devices received different marks - 10 and 7, respectively, on a 10-point scale.

AVR-X6400H
10
TX-SR494
7

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-SR494 supports a 7.2-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-SR494 it is 135/6 W/Ohm.

AVR-X6400H TX-SR494
Channels11.27.2
Stereo power (RMS), W/Ohm140/8, 250/6135/6
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-SR494 - 9.

AVR-X6400H
10
TX-SR494
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-SR494
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, Hi-Res audio

Connectivity

The connectivity of competitors in our comparison is markedly different, Denon AVR-X6400H scored 8, and Onkyo TX-SR494 scored 5 out of 10.

AVR-X6400H
8
TX-SR494
5

Wireless connection via Wi-Fi is possible only on the Denon AVR-X6400H.

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

Wired internet connection via RJ45 allows receiver faster connection than wireless or even use NAS storages. Wired connection via RJ45 is possible in the AVR-X6400H only.

AVR-X6400H TX-SR494
Wi-Fi
USB1 (USB 2.0)1 (USB 2.0)
Bluetooth
Ethernet (RJ45)1
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-SR494
Apple Music (AirPlay)AirPlay, AirPlay 2
Amazon Music
Spotify
Other streaming servicesDeezer, TIDAL, Pandora, Napster, SiriusXM, TuneIn Radio, iHeart Radio, Sound Cloudhas not

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-SR494 received 6 points.

AVR-X6400H
10
TX-SR494
6

Denon AVR-X6400H is equipped with 8/3 HDMI inputs and outputs, and Onkyo TX-SR494 has 4/1 HDMI inputs and outputs.

HDMI eARC is the next step in the development of audio return channel technology, which works in conjunction with HDMI 2.1. Using eARC provides the highest sound quality for home audio systems. HDMI eARC is available only on Denon AVR-X6400H.

Connecting a vinyl player or phonograph is possible using a Phono input which is represented by mini-jack or RCA connectors. Only the AVR-X6400H has a Phono interface.

AVR-X6400H TX-SR494
HDMI input/output8/34/1
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 input50
Component input/output2/10/0
Phono (MM) input
Front panel connectorsUSB, HDMI, phones, setup mic, AUXUSB, phones
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 6 for the TX-SR494.

AVR-X6400H
9
TX-SR494
6

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-SR494
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 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-SR494 has 6.

AVR-X6400H
10
TX-SR494
6

Voice control allows you to control the basic functions of the receiver through a smartphone, smart speaker or using the microphone that comes with the kit. The AVR-X6400H can be controlled by voice via Amazon Alexa, Google Assistant, Siri, Josh.AI. Only the Denon AVR-X6400H has the ECO mode.

AVR-X6400H TX-SR494
Voice controlAmazon Alexa, Google Assistant, Siri, Josh.AI
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, USBUSB
Other additional featuresIP Controlhas not

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-SR494
Multi-room zones32
Zone audio outputspeaker, preoutspeaker
Zone HDMI output
Multi-room controlHEOS App, Denon 2016 AVR Remotehas not
RS-23210
Remote control input/output (IR)1/10/0
DC trigger output (12V)20

Multichannel surround

Denon AVR-X6400H got 9 points for the multichannel surround sound and Onkyo TX-SR494 got 7.

AVR-X6400H
9
TX-SR494
7

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.

AVR-X6400H TX-SR494
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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