Denon AVR-S660H vs Yamaha RX-A6A

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Votes 1 1
Rating 5 5

AVR-S660H vs RX-A6A comparison chart

Denon AVR-S660H vs Yamaha RX-A6A review

Denon AVR-S660H
vs
Yamaha RX-A6A

Let's make the Denon AVR-S660H versus Yamaha RX-A6A comparison. According to the results of our review, Denon AVR-S660H received 6.7 points out of 10 possible, and Yamaha RX-A6A was rated 9.3 points. Both AV receivers were introduced in 2021. After comparison, it will become clear that among these two devices, the RX-A6A is more suitable for the role of the heart of home theater system.

Main advantages Denon AVR-S660H over Yamaha RX-A6A

  • We do not know advantages

Main advantages Yamaha RX-A6A over Denon AVR-S660H

  • More channels, namely 9, makes this receiver more profitable than its 5-channel competitor.
  • 150/8 W/Ohm RMS makes it more productive compared to 75/8 W/Ohm RMS in another receiver in the review.
  • Thanks to 3 multi-room zones support, RX-A6A bypasses its competitor without multizone support.

Amplifiers

For the built-in amplifier, the devices received different marks - 6 and 9, respectively, on a 10-point scale.

AVR-S660H
6
RX-A6A
9

The number of channels is equal to the number of possible connected speakers. The Denon AVR-S660H supports 5.2-channels sound, but Yamaha RX-A6A 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 RX-A6A this value is 150/8 W/Ohm, and for the AVR-S660H it is 75/8 W/Ohm.

AVR-S660H RX-A6A
Channels5.29.2
Stereo power (RMS), W/Ohm75/8, 100/6150/8
Output impedance, Ohm8, 68
Frequency response10Hz-100KHz10Hz-100KHz
THD in stereo, %0.080.06

Audio features

After reviewing the audio features of each model, we can rate the AVR-S660H 6 out of 10, and the RX-A6A - 9.

AVR-S660H
6
RX-A6A
9

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 RX-A6A.

Pure Direct mode feeds sound directly to the amplifier and bypasses any DSP processing. Only Yamaha RX-A6A has Pure Direct mode.

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.

AVR-S660H RX-A6A
Digital to analog converter (DAC)192 KHz/32-bit384 KHz/32-bit
Bi-amping
Pure direct (straight)
Auto speaker calibrationAudyssey MultEQYPAO
Speaker A/B switching
Other audio featuresAudyssey Dynamic Volume, Audyssey Dynamic EQ, Hi-Res audioCINEMA DSP 3D, Compressed Music Enhancer, Virtual CINEMA FRONT

Connectivity

The connectivity of competitors in our comparison is markedly different, Denon AVR-S660H scored 7, and Yamaha RX-A6A scored 9 out of 10.

AVR-S660H
7
RX-A6A
9

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

AVR-S660H RX-A6A
Wi-Fi2.4/5GHz2.4/5GHz
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-S660H RX-A6A
Apple Music (AirPlay)AirPlay, AirPlay 2AirPlay, AirPlay 2
Amazon Music
Spotify
Other streaming servicesDeezer, TIDAL, Pandora, SiriusXM, Napster, SoundCloudDeezer, TIDAL, Pandora, SiriusXM, Napster, SoundCloud

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-S660H got 7 points, but Yamaha RX-A6A received 10 points.

AVR-S660H
7
RX-A6A
10

Denon AVR-S660H is equipped with 6/1 HDMI inputs and outputs, and Yamaha RX-A6A has 7/3 HDMI inputs and outputs.

AVR-S660H RX-A6A
HDMI input/output6/17/3
HDMI ARC (Audio Return Channel)
HDMI eARC (Enhanced Audio Return Channel)
HDMI CEC
Digital content protection (HDCP)HDCP 2.3HDCP 2.3
Subwoofer output (LFE)22
Headphone output1 x 6.31 x 6.3
Optical digital input23
Coaxial digital input12
Composite input22
Component input/output01
Phono (MM) input
Front panel connectorsUSB, phones, setup micUSB, 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-S660H were rated 8 out of 10 against the 9 for the RX-A6A.

AVR-S660H
8
RX-A6A
9

AVR-S660H RX-A6A
HDR (High Dynamic Range)HDR10+HDR10+
4K signal pass-through4K/120Hz4K/120Hz
8K signal pass-through8K/60Hz8K/60Hz
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 featuresDynamic HDR, HLG, BT.2020x.v.Color, HLG, BT.2020, LipSync

Additional features

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

AVR-S660H
10
RX-A6A
10

AVR-S660H RX-A6A
Voice controlAmazon Alexa, Google Assistant, Siri, Josh.AIAmazon Alexa, Google Assistant, Siri, Josh.AI
App controliPhone, iPad, iPod, AndroidiPhone, iPad, iPod, Android
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 featuresWeb Control, App ControlWeb Control, App 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-S660H RX-A6A
Multi-room zoneshas not3
Zone audio outputhas notpreout
Zone HDMI outputhas not
Multi-room controlHEOS App, Denon 2016 AVR RemoteMusicCast
RS-23200
Remote control input/output (IR)0/01/1
DC trigger output (12V)02

Multichannel surround

For the ability to create multichannel surround sound, each of the receivers received 8 points out of 10.

AVR-S660H
8
RX-A6A
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. Yamaha RX-A6A has Auro-3D on its feature list.

AVR-S660H RX-A6A
Dolby Atmos
Dolby TrueHD
Dolby Surround
Dolby (other)Dolby Atmos Height VirtualizationDolby 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-HD, DTS-EXPRESSDTS-ES, DTS-HD
Auro-3D
IMAX Enhanced
Multichannel stereo
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