Onkyo TX-NR686 vs Denon AVR-S640H

Onkyo TX-NR686

Onkyo TX-NR686 review

Dec 07, 2018

The best about Onkyo TX-NR686 specs is that the receiver supports 4K HDMI and 3D pass-through, has built-in wireless multi-room platforms and allows tuning the system as you want. Let’s speak a...

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Rating 5 5

Common

Product

Onkyo TX-NR686
Denon AVR-S640H

Model

TX-NR686
AVR-S640H

Brand

Onkyo
Denon

Rating

4.2 of 5
4.1 of 5

Reviews

55
145

Amplifier

Total output power

800 W
560 W

Output power per channel

160 W
75 W

Output impedance per channel

8 Ohm
8 Ohm

Frequency response

20 Hz-20 kHz
20 Hz-20 kHz

Total harmonic distortion

0.08 %
0.08 %

Number of channels

7
7

Signal-to-noise ratio

106 dB
98 dB

Functions

Digital player

Internet radio

Network audio player

Audio formats

AAC

AIFF

Apple lossless

FLAC

MP3

WAV

WMA

Built-in decoders

DTS:X

Dolby Atmos

Dolby digital plus

Dolby surround

Dolby true HD

Built-in display

Type

fluorescent
fluorescent

Colour

black
black

Connectivity interfaces

Bluetooth

Wi-Fi

IEEE 802.3

IEEE 802.3u

Signal processing

HDMI pass-through

up to 4K
up to 4K

Video conversion/scaling

HDMI to HDMI scaling, analog to HDMI up conversion

3D pass-through

Upscaling via HDMI

up to 4K

Connector type

AV inputs

7
6

Optical digital inputs

2
2

Coaxial digital inputs

1
1

HDMI inputs

7
6

HDMI outputs

2
1

Optical digital outputs

has not
has not

Coaxial digital outputs

has not
has not

Subwoofer outputs

2
2

USB

1
1

Phones

1
1

Media content source

Bluetooth

Network

USB-host

Radio

Tuner type

digital
digital

Tuner bands

AM/FM
AM/FM

Preset station

40
40

Additional features

A-B speaker switch

Three-zone capability

Advanced sound retriever (ASR) technology

Apple air-play support

Audio return channel (ARC)

Bi-amplifying

Auto power off

Pure direct mode

Dual-zone capability

Smartphone remote control

Sound features

Audio D/A converter

32bit / 384kHz
24bit / 192kHz

Surround sound effects

Theater-Dimensional Virtual Surround

Surround system class

7.2 channel
7.1 channel

Digital content protection

HDCP 2.2
HDCP 2.2

Clock

Built-in clock

Sleep timer

Power device

Operational power consumption

570 W
400 W

Standby power consumption

0.15 W
0.1 W

User manual

Manual

Dimensions

Dimensions

14.9 x 17.1 x 6.8 inches
13.3 x 17.1 x 5.9 inches

Weight

22 pounds
18.74 pounds
Onkyo TX-NR686
Denon AVR-S640H
Onkyo TX-NR686
Denon AVR-S640H

AV receivers HelpToChoose comparison rating

  • better
  • worse
  • 24.4
  • 21.6
  • 24.4Onkyo TX-NR686
  • 21.6Denon AVR-S640H

The Onkyo TX-NR686 is better receiver in this comparison. Check Onkyo TX-NR686 price