Onkyo TX-NR676 vs Onkyo TX-NR646

Onkyo TX-NR676 vs. Onkyo TX-NR646 - compare features and specifications

Onkyo TX-NR676 vs Onkyo TX-NR646

Onkyo TX-NR676 7.2 channel network receiver

This receiver supports a 7.2 channel setup or 5.2.2 channel Dolby Atmos and DTS:X. The power per channel is 210 W. Due to the Chromecast application you can control playback from your iOS, Android, Mac or Windows device. Onkyo TX-NR676 also supports a wide range of network services like Amazon Music, Spotify, TuneIn, etc. The dynamic audio amplification technology generates pure and rich sound. One of the advantages of the Onkyo TX-NR676 - you can easily control content and volume of the second zone. You can play separate content in the second zone or both zones can play the same content. Due to dual-band Wi-Fi you can to assure a stable connection that is important for content streaming.

Pros of Onkyo TX-NR676:

  • The device supports 4K HDR at 60 Hz.
  • A powerful digital-analog converter generates noise-free, clear sound for compressed and lossless formats.
  • Applications are reliable and work well.
  • You can easily access the menu that lets you control bass and speakers level.

Onkyo TX-NR676 cons:

  • The menu control is a bit confusing.
  • It is difficult to access the sleep time.
  • If you have issues with a BD player, then this receiver may switch itself to 4K BD.
  • Chromecast can stream audio only.

Onkyo TX-NR646 7.2 channel receiver

This model has the DTS:X surround sound technology and Dolby Atmos up to 5.1.2 channels. The power per channel is 170 W. Onkyo TX-NR646 supports various network services like Pandora and Spotify. You can also stream audio from different devices, like smartphones, tablets or PCs. The calibration process is fast and easy. You just need to place a mic in the middle of the room, and then start the calibration process. The dual zone mode lets you play different or the same content in different zones. The application lets you control playback of content.

Onkyo TX-NR646 pros:

  • The new HDMI ports support 4K at 60Hz.
  • Wireless connection interfaces let you use various network services and internet radio.
  • A phono input lets you connect a record player.
  • The firmware can be upgraded via Wi-Fi.
  • Various audio enhancement technologies produce clear and rich sound in movies .
  • The internet radio menu is very useful, since it has genre menus and presets.

Cons of Onkyo TX-NR646:

  • The remote controller looks outdated.
  • The HDMI pass-through function does not work if the receiver is in standby mode.
  • It has only 3 digital audio inputs, and some customers find it not enough.
  • It may have some issues with 4K TV compatibility.

Onkyo TX-NR676 vs Onkyo TX-NR646 short receiver comparison

There are almost no major differences when we compare Onkyo TX-NR676 vs TX-NR646. However, there are still some and you need to focus on them.

The main advantage of Onkyo TX-NR676 is that it has more total power output (700 W versus 580 W that Onkyo TX-NR646 has). The main disadvantage of this model is that the menu is a bit confusing.

The main advantage of Onkyo TX-NR646 is that it has less operational power consumption – compare 360 W and 560 W that Onkyo TX-NR676 has. While its main disadvantage is that it has some problems with compatibility.

Overall, Onkyo TX-NR646 vs Onkyo TX-NR676 is all about the total power output. If you need a more powerful device that has many audio enhancement features then TX-NR676 is for you. If you need something simpler, then pay attention to TX-NR646. I hope this comparison chart will help you compare Onkyo TX-NR646 vs TX-NR676 and choose the right device for you.

Onkyo TX-NR676

Onkyo TX-NR676 review

Mar 27, 2019

The Onkyo TX-NR676 can cope with anything: all the five HDMI jacks are added for use on PCs, DVD or PS consoles. Also, it has needed a set of stereo outputs in a case you obtain a speakers’ sec...

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Onkyo TX-NR646

Onkyo TX-NR646 review

May 20, 2019

Amazing Dolby Atmos sound for a great price – that’s what Onkyo TX-NR646 is about. 4 Built-in decoders, recognition of 7 audio formats and ability to control the receiver remotely makes O...

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Common

Product

Onkyo TX-NR676
Onkyo TX-NR646

Model

TX-NR676
TX-NR646

Brand

Onkyo
Onkyo

Rating

3.8 of 5
3.6 of 5

Reviews

186
399

Amplifier

Total output power

700
580 W

Output power per channel

100 W
100 W, 170 W

Output impedance per channel

4 Ohm
6 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
106 dB

Functions

Amplifier class

Digital player

Internet radio

Network audio player

Audio formats

AAC

DSD

AIFF

Apple lossless

FLAC

MP3

WAV

WMA

Built-in decoders

DTS:X

DTS-HD master audio

DTS neural: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

Analog to HDMI up conversion

3D pass-through

has not

Upscaling via HDMI

has not

Connector type

AV inputs

2
2

Optical digital inputs

2
2

Coaxial digital inputs

1
1

HDMI inputs

7
8

HDMI outputs

2
2

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

Preset station qty

Additional features

A-B speaker switch

MCACC Pro

Deep color

X.v.Color

AIR Studios monitor certification

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 / 192kHz
32bit / 384kHz

DSP preset qty

Sound output mode

Surround sound effects

Theater-Dimensional Virtual Surround
Theater-Dimensional Virtual Surround

Surround system class

7.2 channel
7.2 channel

Digital content protection

HDCP 2.2
has not

Digital sound processor (DSP)

Clock

Built-in clock

Sleep timer

has not

Power device

Operational power consumption

560 W
360 W

Standby power consumption

0.15 W
0.1 W

User manual

Manual

Dimensions

Dimensions

14.8 x 17.1 x 6.8 inches
12.9 x 17.1 x 6.8 inches

Weight

22 pounds
20.7 pounds
Onkyo TX-NR676
Onkyo TX-NR646
Onkyo TX-NR676
Onkyo TX-NR646

AV receivers HelpToChoose comparison rating

  • better
  • worse
  • 25.3
  • 19.8
  • 25.3Onkyo TX-NR676
  • 19.8Onkyo TX-NR646

Onkyo TX-NR676 is better receiver in this comparison. Check Onkyo TX-NR676 price