Dec 13, 2019
Read MoreDenon AVR-S740H vs Onkyo TX-NR686 review
Denon AVR-S740H review
Compared devices have equal channel quantity: 7.2 for each. The power output is 110W at 6 Ohms from Denon and 165/6 from Onkyo. The AVR-S740H with discrete high-power power amplifiers on all channels provides maximum performance. Featuring a low impedance driver, it provides stability with a wide range of speakers for balanced, high-quality sound. In addition, the Eco Mode auto mode adjusts the output power for the speakers based on the volume level and on-screen eco meter, providing real-time power savings. Streaming music stored on your home network connects to your HEOS wireless speakers or even other HEOS-enabled receivers and is listened all over the house. 
Onkyo TX-NR686 review
Thanks to its powerful dynamic amplification, your system is able to achieve, in surround sound, the “THX Certified Select” volume level. The AV receiver can pass through HDMI video, with a resolution of 4K HDR and the latest standards 4K / 60p, Dolby Vision, HDR10, HLG and BT.2020, complementing the picture with DTS:X and Dolby Atmos audio tracks. Also, Dolby Surround and DTS Neural:X decoders can be involved i creating the surrounding 3D sound space, from which ordinary multichannel films will sound in a new way, with surround, exciting sound. 
Denon AVR-S740H pros & cons
Pros
- There is a HEOS protocol with wireless control
- The sound is deep and rich, suitable for playing any content, both films and music
Cons
- The receiver cannot convert the video signal to 4K
- The remote cannot be programed
Onkyo TX-NR686 pros & cons
Pros
- In fact, the device is really worthwhile, it has a good set of functions and is easy to listen to all day long
- Decent level of detail
Cons
- Not enough drive and speakers when playing
Denon AVR-S740H vs Onkyo TX-NR686
Denon and Onkyo
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Common
Product
Denon AVR-S740H
Onkyo TX-NR686
Model
AVR-S740H
TX-NR686
Brand
Denon
Onkyo
Reviews
209
152
Amplifier
Channels
7.2
7.2
Stereo power (RMS), W/Ohm
75/8, 110/6
165/6
Output impedance, Ohm
8, 6
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
VLSC 384 KHz/32-bit
Bi-amping
Pure direct (straight)
Auto speaker calibration
Audyssey MultEQ
AccuEQ
Speaker A/B switching
Other audio features
Audyssey Dynamic Volume, Audyssey Dynamic EQ, Compressed Audio Restorer, Hi-Res audio
Advanced Music Optimizer, Theater-Dimensional, 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
Amazon Music
Spotify
Other streaming services
Deezer, TIDAL, Pandora, Napster, SiriusXM, TuneIn Radio, iHeart Radio, Sound Cloud
Deezer, TIDAL, TuneIn Radio
Extensive connection
HDMI input/output
6/1
7/2
HDMI ARC (Audio Return Channel)
HDMI eARC (Enhanced Audio Return Channel)
HDMI CEC
Digital content protection (HDCP)
HDCP 2.2
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
2/0
Phono (MM) input
Front panel connectors
USB, HDMI, phones, setup mic
HDMI, phones, setup mic
Multi channel preamp output
Video features
HDR (High Dynamic Range)
HDR10
4K signal pass-through
4K/60Hz
4K/60Hz
8K signal pass-through
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
BT.2020, HLG
DeepColor, x.v.Color
Additional features
Voice control
Amazon Alexa, Google Assistant, Siri, Josh.AI
Google Assistant
App control
iPhone, iPad, iPod, Android
iPhone, iPod, Android
Display
colour OSD
fluorescent
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
IP Control, Web Control
IP Control
Multi-room
Multi-room zones
2
2
Zone audio output
speaker
speaker, preout
Zone HDMI output
Multi-room control
HEOS App
Onkyo Controller app, FlareConnect
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 Digital Plus
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-Surround
DTS-ES, DTS 96/24, DTS-HD, DTS-EXPRESS
Auro-3D
IMAX Enhanced
Multichannel stereo
Audio file formats
MP3
WMA
AAC
WAV
FLAC
ALAC
Other audio file formats
has not
AIFF
Power
Operational power consumption, W
400
570
Standby consumption, W
0.1
0.15
Removable power cord
Dimensions
Size W x H x D, cm/inches
43.5 x 15.2 x 33/17 x 6 x 13.3
43.5 x 17.3 x 37.9/17 x 6.8 x 15.6
Weight, kg/lbs
8.6/19
10/22.1
Other
Release year
2018
2018
AV receivers CHooseratoR comparison rating
- 7.1Denon AVR-S740H
- 7.2Onkyo TX-NR686
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