Onkyo TX-SR494 vs Onkyo TX-NR686

TX-SR494 vs TX-NR686 comparison chart

Onkyo TX-SR494 vs Onkyo TX-NR686 review

Onkyo TX-SR494 vs Onkyo TX-NR686

Onkyo TX-SR494 review

The 7.2 channel unit delivers 135W at 6 ohms. For automatic surround sound tuning, the Onkyo TX-SR494 features AccuEQ technology with extensions for the subwoofer channel, as well as 3D formats. The AV receiver uses high-quality DACs with 32-bit / 384 kHz parameters from AKM. You can use the Direct mode to turn off all additional audio processing. Onkyo TX-SR494 is equipped with four HDMI inputs with support for 4K video, Dolby Vision and HDR10. When applying a signal with 1080p parameters to the HDMI input, it can be upscaled to 4K. The device also has a good set of digital and analog inputs for connecting various signal sources. Also in this model provides Bluetooth with support for High Quality Audio. Onkyo TX-SR494

Onkyo TX-NR686 review

In addition to the main 7.2 channels - the last two of which can be used both for the rear and for the speakers of the “upper” channels in the Dolby Atmos or DTS setup: X - TX-NR686 is equipped with additional amplification channels for connecting a pair of speakers in the second zone. And given the receiver's output power, which is 165 watts per channel (6 ohm), even with fairly demanding acoustics, it should not have any problems. The device has a good set of physical inputs, it has seven HDMI connectors with HDCP 2.2 support. Onkyo TX-NR686

Onkyo TX-SR494 pros & cons

Pros

  • Once you get the Atmos or DTS-HDMA going, the sound quality from this unit is perfect
  • The HDMI ARC works perfectly and if your TV can pass HD sound, you will actually be able to hook 5, 6 or 7 devices to this, depending on your TV’s inputs

Cons

  • The only drawback is the Bluetooth audio is a bit lacking in sound quality

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

Votes 3 3
Rating 4 4
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Common

Product

Onkyo TX-SR494
Onkyo TX-NR686

Model

TX-SR494
TX-NR686

Brand

Onkyo
Onkyo

Reviews

159
152

Amplifier

Channels

7.2
7.2

Stereo power (RMS), W/Ohm

135/6
165/6

Output impedance, Ohm

6
6

Frequency response

10Hz-100KHz
10Hz-100KHz

THD in stereo, %

0.08
0.08

Audio features

Digital to analog converter (DAC)

AKM 384 KHz/32-bit
VLSC 384 KHz/32-bit

Bi-amping

Pure direct (straight)

Auto speaker calibration

AccuEQ
AccuEQ

Speaker A/B switching

Other audio features

Advanced Music Optimizer, 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

DLNA

MHL

Streaming services

Apple Music (AirPlay)

AirPlay

Amazon Music

Spotify

Other streaming services

has not
Deezer, TIDAL, TuneIn Radio

Extensive connection

HDMI input/output

4/1
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

1
2

Coaxial digital input

1
1

Composite input

0
2

Component input/output

0/0
2/0

Phono (MM) input

Front panel connectors

USB, phones
HDMI, phones, setup mic

Multi channel preamp output

Video features

HDR (High Dynamic Range)

HDR10
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

DeepColor, x.v.Color, HLG, BT.2020
DeepColor, x.v.Color

Additional features

Voice control

Google Assistant

App control

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

Display

fluorescent
fluorescent

Tuner

AM, FM
AM, FM

Sleep timer

Auto power off

ECO mode

Graphical user interface (GUI)

Setup assistant

Firmware update

USB
network, USB

Other additional features

has not
IP Control

Multi-room

Multi-room zones

2
2

Zone audio output

speaker
speaker, preout

Zone HDMI output

Multi-room control

has not
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 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

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

490
570

Standby consumption, W

0.1
0.15

Removable power cord

User manual

Manual

Dimensions

Size W x H x D, cm/inches

43.5 x 16.1 x 32.7/17 x 6.3 x 12.6
43.5 x 17.3 x 37.9/17 x 6.8 x 15.6

Weight, kg/lbs

8.2/18.1
10/22.1

Other

Release year

2019
2018
Onkyo TX-SR494
Onkyo TX-NR686
Onkyo TX-SR494
Onkyo TX-NR686

AV receivers CHooseratoR comparison rating

  • better
  • worse
  • 5.5
  • 7.2
  • 5.5Onkyo TX-SR494
  • 7.2Onkyo TX-NR686