Denon AVR-S660H vs Denon AVR-S740H review

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AV receivers comparison chart

Denon AVR-S660H vs Denon AVR-S740H review

Denon AVR-S660H
vs
Denon AVR-S740H

An affordable AV receiver is always a good option to consider, so Denon AVR-S660H vs Denon AVR-S740H comparison definitely makes sense.

Amplifier

A significant difference between the receivers in the number of channels, Denon AVR-S660H has 5.2 versus 7.2 for Denon AVR-S740H. Regarding power, then AVR-S660H has such a W/Ohm ratio - 75/8, 100/6 when AVR-S740H has a power of 75/8, 110/6. The THD is the same and is 0.08%.

Audio features

Competitors' digital to analog converter (DAC) is identical to 192 KHz/32-bit. None of the models support Bi-amping. The Denon AVR-S740H can transmit an audio signal directly to the amplifier and bypasses any DSP processing. Rivals from our review have Bluetooth support. The Apple Music service is implemented on considered devices: AirPlay, AirPlay 2. Spotify can be used on each receiver. The AVR-S660H can work with the audio stream from Deezer, TIDAL, Pandora, SiriusXM, Napster, SoundCloud, and the AVR-S740H can receive a content from Deezer, TIDAL, Pandora, Napster, SiriusXM, TuneIn Radio, iHeart Radio, Sound Cloud. HDMI signal transmission in standby mode is implemented in each of the devices. The AVR-S660H can scale the input HDMI signal, unlike the AVR-S740H. The HDR standard - Dolby Vision is supported by these receivers.

Extensive connections

Each receiver has 6/1 HDMI inputs/outputs.Denon AVR-S660H connectionsDenon AVR-S740H connections The HDMI Audio Return Channel (ARC) feature supports both devices. The HDMI eARC is available only on the AVR-S660H. The Consumer Electronics Control (CEC) feature is present in most modern AV receivers and the models in our comparison are no exception. The AVR-S660H supports the protection of digital content of the standard HDCP 2.3, versus HDCP 2.2 in the AVR-S740H. These compared receivers have a built-in phono stage for connecting a vinyl player. Supported voice control technologies are identical - Amazon Alexa, Google Assistant, Siri, Josh.AI. It is also worth noting that the ECO mode is presented in each of the receivers. Both AVR-S660H and AVR-S740H can be configured using the Setup assistant.

Multichannel surround

Both devices have support for Dolby Atmos multichannel audio format. The surround sound technology DTS:X is supported by devices under review.

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General

Item

Denon AVR-S660H
Denon AVR-S740H

Model

AVR-S660H
AVR-S740H

Brand

Denon
Denon

Reviews

0
158

Amplifier

Channels

5.2
7.2

Stereo power (RMS), W/Ohm

75/8, 100/6
75/8, 110/6

Output impedance, Ohm

8, 6
8, 6

Frequency response

10Hz-100KHz
10Hz-100KHz

THD in stereo, %

0.08
0.08

Audio features

Digital to analog converter (DAC)

192 KHz/32-bit
192 KHz/32-bit

Bi-amping

Pure direct (straight)

Auto speaker calibration

Audyssey MultEQ
Audyssey MultEQ

Speaker A/B switching

Other audio features

Audyssey Dynamic Volume, Audyssey Dynamic EQ, Hi-Res audio
Audyssey Dynamic Volume, Audyssey Dynamic EQ, Compressed Audio Restorer, Hi-Res audio

Connectivity

Wi-Fi

2.4/5GHz

USB

1 (USB 2.0)
1 (USB 2.0)

Bluetooth

Ethernet (RJ45)

1
1

DLNA

MHL

Streaming services

Apple Music (AirPlay)

AirPlay, AirPlay 2
AirPlay, AirPlay 2

Amazon Music

Spotify

Other streaming services

Deezer, TIDAL, Pandora, SiriusXM, Napster, SoundCloud
Deezer, TIDAL, Pandora, Napster, SiriusXM, TuneIn Radio, iHeart Radio, Sound Cloud

Extensive connection

HDMI input/output

6/1
6/1

HDMI ARC (Audio Return Channel)

HDMI eARC (Enhanced Audio Return Channel)

HDMI CEC

Digital content protection (HDCP)

HDCP 2.3
HDCP 2.2

Subwoofer output (LFE)

2
2

Headphone output

1 x 6.3
1 x 6.3

Optical digital input

2
2

Coaxial digital input

1
1

Composite input

2
2

Component input/output

0
0/0

Phono (MM) input

Front panel connectors

USB, phones, setup mic
USB, HDMI, phones, setup mic

Multi channel preamp output

Video features

HDR (High Dynamic Range)

HDR10+

4K signal pass-through

4K/120Hz
4K/60Hz

8K signal pass-through

8K/60Hz

HDMI signal pass-through

3D signal pass-through

HDMI pass-through in standby mode

Video conversion

Analog to HDMI scaling

HDMI to HDMI scaling

Dolby Vision

Other video features

Dynamic HDR, HLG, BT.2020
BT.2020, HLG

Additional features

Voice control

Amazon Alexa, Google Assistant, Siri, Josh.AI
Amazon Alexa, Google Assistant, Siri, Josh.AI

App control

iPhone, iPad, iPod, Android
iPhone, iPad, iPod, Android

Display

colour OSD
colour OSD

Tuner

AM, FM
AM, FM

Sleep timer

Auto power off

ECO mode

Graphical user interface (GUI)

Setup assistant

Firmware update

network, USB
network, USB

Other additional features

Web Control, App Control
IP Control, Web Control

Multi-room

Multi-room zones

has not
2

Zone audio output

has not
speaker

Zone HDMI output

has not

Multi-room control

HEOS App, Denon 2016 AVR Remote
HEOS App

RS-232

0
0

Remote control input/output (IR)

0/0
0/0

DC trigger output (12V)

0
0

Multichannel surround

Dolby Atmos

Dolby TrueHD

Dolby Surround

Dolby (other)

Dolby Atmos Height Virtualization
Dolby Digital Plus

DTS:X

DTS HD Master

DTS Virtual:X

DTS Neural:X

DTS (other)

DTS-ES, DTS 96/24, DTS-HD, DTS-EXPRESS
DTS-ES, DTS 96/24, DTS-HD, DTS-EXPRESS, DTS-Surround

Auro-3D

IMAX Enhanced

Multichannel stereo

Audio file formats

MP3

WMA

AAC

WAV

FLAC

ALAC

Other audio file formats

AIFF, DSD
has not

Power

Operational power consumption, W

340
400

Standby consumption, W

0.1
0.1

Removable power cord

User manual

Manual

Dimensions

Size W x H x D, cm/inches

43.4 x 33.9 x 21.5/17 x 13.3 x 8.4
43.5 x 15.2 x 33/17 x 6 x 13.3

Weight, kg/lbs

7.8/17
8.6/19

Other

Release year

2021
2018
Denon AVR-S660H
Denon AVR-S740H
Denon AVR-S660H
Denon AVR-S740H

AV receivers SoundInspiration comparison rating

  • better
  • worse
  • 6.7
  • 7.1
  • 6.7Denon AVR-S660H
  • 7.1Denon AVR-S740H