Denon AVR-S750H vs Denon AVR-X6400H

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Votes 1 1
Rating 5 5

AVR-S750H vs AVR-X6400H comparison chart

Denon AVR-S750H vs Denon AVR-X6400H review

Denon AVR-S750H
vs
Denon AVR-X6400H

The Denon AVR-S750H versus Denon AVR-X6400H comparison makes clear all pros and cons of AV receivers. According to the results of our review, Denon AVR-S750H received 7 points out of 10 possible, and Denon AVR-X6400H was rated 9.4 points. The release date of AVR-S750H is 2019, and AVR-X6400H is 2017. Identified advantages have shown that AVR-X6400H is better over AVR-S750H mainly as a home theater processor.

Main advantages Denon AVR-S750H over Denon AVR-X6400H

  • We do not know advantages

Main advantages Denon AVR-X6400H over Denon AVR-S750H

  • More channels, namely 11, makes this receiver more profitable than its 7-channel competitor.
  • 140/8 W/Ohm RMS makes it more productive compared to 75/8 W/Ohm RMS in another receiver in the review.
  • Both receivers have a multi-room zone function, but AVR-X6400H has 3 zones vs 2 on its competitor.

Amplifiers

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

AVR-S750H
7
AVR-X6400H
10

The number of channels is equal to the number of possible connected speakers. The Denon AVR-S750H supports 7.2-channels sound, but Denon AVR-X6400H supports a 11.2-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 140/8 W/Ohm, and for the AVR-S750H it is 75/8 W/Ohm.

AVR-S750H AVR-X6400H
Channels7.211.2
Stereo power (RMS), W/Ohm75/8, 110/6140/8, 250/6
Output impedance, Ohm8, 68, 6
Frequency response10Hz-100KHz10Hz-100KHz
THD in stereo, %0.080.05

Audio features

After reviewing the audio features of each model, we can rate the AVR-S750H 6 out of 10, and the AVR-X6400H - 10.

AVR-S750H
6
AVR-X6400H
10

Bi-amping is the amplification of one speaker with two amplifiers. This amplification method has a positive effect on sound quality. Bi-amping is possible on the AVR-X6400H.

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-S750H AVR-X6400H
Digital to analog converter (DAC)AKM 192 KHz/32-bitAK4458 384 KHz/32-bit
Bi-amping
Pure direct (straight)
Auto speaker calibrationAudyssey MultEQAudyssey MultEQ XT32
Speaker A/B switching
Other audio featuresAudyssey Dynamic Volume, Audyssey Dynamic EQ, Compressed Audio Restorer, Hi-Res audioAudyssey Dynamic Volume, Audyssey Dynamic EQ, Audyssey LFC

Connectivity

The connectivity of competitors in our comparison is markedly different, Denon AVR-S750H scored 7, and Denon AVR-X6400H scored 8 out of 10.

AVR-S750H
7
AVR-X6400H
8

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

AVR-S750H AVR-X6400H
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-S750H AVR-X6400H
Apple Music (AirPlay)AirPlay, AirPlay 2AirPlay, AirPlay 2
Amazon Music
Spotify
Other streaming servicesDeezer, TIDAL, Pandora, Napster, SiriusXM, TuneIn Radio, iHeart Radio, Sound Cloud, Mood MixDeezer, TIDAL, Pandora, Napster, SiriusXM, TuneIn Radio, iHeart Radio, Sound Cloud

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-S750H got 7 points, but Denon AVR-X6400H received 10 points.

AVR-S750H
7
AVR-X6400H
10

Denon AVR-S750H is equipped with 6/1 HDMI inputs and outputs, and Denon AVR-X6400H has 8/3 HDMI inputs and outputs.

The HDCP encryption protocol is now mandatory for most media devices. This security technology encrypts digital signals from one product to another. HDCP content-encryption protocol is present on Denon AVR-S750H in the HDCP 2.3 version, and Denon AVR-X6400H has the HDCP 2.2 version.

AVR-S750H AVR-X6400H
HDMI input/output6/18/3
HDMI ARC (Audio Return Channel)
HDMI eARC (Enhanced Audio Return Channel)
HDMI CEC
Digital content protection (HDCP)HDCP 2.3HDCP 2.2
Subwoofer output (LFE)22
Headphone output1 x 6.31 x 6.3
Optical digital input22
Coaxial digital input12
Composite input25
Component input/output0/02/1
Phono (MM) input
Front panel connectorsUSB, HDMI, phones, setup micUSB, HDMI, phones, setup mic, AUX
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-S750H were rated 6 out of 10 against the 9 for the AVR-X6400H.

AVR-S750H
6
AVR-X6400H
9

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 with Denon AVR-X6400H.

AVR-S750H AVR-X6400H
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 featuresHLG, BT.2020HLG

Additional features

In terms of evaluating additional features, both receivers received a score of 10 out of 10.

AVR-S750H
10
AVR-X6400H
10

AVR-S750H AVR-X6400H
Voice controlAmazon Alexa, Google Assistant, Siri, Josh.AIAmazon Alexa, Google Assistant, Siri, Josh.AI
App controliPhone, iPad, iPod, Android, Amazon KindleiPhone, iPad, iPod, Android, Amazon Kindle
Displaycolour OSDcolour OSD
TunerAM, FMAM, FM
Sleep timer
Auto power off
ECO mode
Graphical user interface (GUI)
Setup assistant
Firmware updatenetwork, USBnetwork, USB
Other additional featuresIP Control, Web 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-S750H AVR-X6400H
Multi-room zones23
Zone audio outputspeakerspeaker, preout
Zone HDMI output
Multi-room controlHEOS AppHEOS App, Denon 2016 AVR Remote
RS-23201
Remote control input/output (IR)0/01/1
DC trigger output (12V)02

Multichannel surround

Denon AVR-S750H got 7 points for the multichannel surround sound and Denon AVR-X6400H got 9.

AVR-S750H
7
AVR-X6400H
9

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. Denon AVR-X6400H has Auro-3D on its feature list.

AVR-S750H AVR-X6400H
Dolby Atmos
Dolby TrueHD
Dolby Surround
Dolby (other)Dolby Digital Plus, Dolby Atmos Height VirtualizationDolby Digital Plus
DTS:X
DTS HD Master
DTS Virtual:X
DTS Neural:X
DTS (other)DTS-ES, DTS 96/24, DTS-HD, DTS-EXPRESSDTS-ES, DTS 96/24, DTS-EXPRESS, DTS Surround
Auro-3D
IMAX Enhanced
Multichannel stereo
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