Onkyo TX-NR575 vs Onkyo TX-NR646

Onkyo TX-NR575 vs. Onkyo TX-NR646 compare and choose the best one

Onkyo TX-NR575 vs. Onkyo TX-NR646

Onkyo TX-NR575 7.2 channel network receiver

Onkyo TX-NR575 has two Wi-Fi modules (5 and 2.4 GHz) which can guarantee a stable connection with a high speed and range, which is crucial for the Chromecast technology. This receiver also features a digital-analog converter that produces clear sound using the special VLSC technology. Updating the firmware of the device, you get more features, like the support of Dolby Digital. Onkyo TX-NR575 works with any DLNA server, so you can play content right from your computer. It will find all files with tags, artist names, and other information. The Onkyo application is convenient and you can access certain functions faster than using a remote.

Pros of Onkyo TX-NR575:

  • Easy to set up and everything works right out of the box (however firmware updating is recommended).
  • Zone 2 is supported. You can control the playback using the application.
  • The Dynamic Audio Amplification process the audio signal and outputs high-quality noise-free sound.
  • AirPlay support.

Cons of Onkyo TX-NR575:

  • The application lacks certain functions.
  • The built-in Chromecast can stream audio only.
  • The FM tuner may have some issues.

Onkyo TX-NR646 7.2 channel receiver

The audio components and built-in technologies like DAC generate clear sound at the power that can fill a large hall. You can use the free Onkyo Remote application to receive streaming audio from mobile devices, view and select tracks from online services, and control playback in two zones. Plus, for vinyl fans, the TX-NR646 is equipped with a phono input for connecting record players.

Pros of Onkyo TX-NR646:

  • Zone 2 is supported that can be easily controlled via an application.
  • The on-screen display is informative and it works well.

Cons of Onkyo TX-NR646:

  • Only 3 digital audio inputs.
  • Audio issues with Samsung TV.
  • Doesn't have the front panel AUX inputs.

Onkyo TX-NR575 vs Onkyo TX-NR646 receiver comparison to find the best option

If we compare Onkyo TX-NR575 vs TX-NR646, then we see some differences, which may be crucial.

The main advantage of Onkyo TX-NR575 is that it works perfectly with other devices. It can use a DLNA server to play content. The main disadvantage is its application that does not have some important functions.

The main advantage of Onkyo TX-NR646 is its phono input that lets you spin vinyl and experience the noise-free analog audio signal. The main disadvantage is that it has some issues with inputs that result in no output signal.

The comparison chart will not be full without mentioning the total power output – 580 W Onkyo TX-NR646 vs TX-NR575 that has 610 W. The difference is not that big.

Therefore, if you need a device that is easy to use and has many great features, then consider getting Onkyo TX-NR575, but if you need a device with a phono input (with a preamp), then Onkyo TX-NR646 is right what you should buy.

Onkyo TX-NR575
Onkyo TX-NR575 review

Sep 25, 2018

When you're buying home theater gear it's a usual choice between either features or performance. But if you could have both? The Onkyo TX-NR575...

Read More
Onkyo TX-NR646
Onkyo TX-NR646 review

Aug 20, 2018

Amazing Dolby Atmos sound for a great price – that’s what

Read More

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Common

Model

TX-NR575
TX-NR646

Brand

Onkyo
Onkyo

Rating

4.2 of 5
3.9 of 5

Reviews

123
393

Functions

Digital player

Internet radio

Network audio player

Amplifier class

D
D

Audio formats

AAC

AIFF

Apple lossless

DSD

FLAC

MP3

WAV

WMA

Built-in decoders

DTS neural:X

DTS-HD master audio

DTS:X

Dolby atmos

Dolby digital plus

Dolby surround

Dolby true HD

Power device

Operational power consumption

600 W
360 W

Standby power consumption

0.1 W
0.1 W

Built-in display

Type

fluorescent
fluorescent

Colour

black
black

Amplifier

Total output power

610 W
580 W

Output power per channel

80 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

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

6
8

HDMI outputs

1
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 qty

40
40

Additional features

A-B speaker switch

AIR Studios monitor certification

Three-zone capability

X.v.Color

Advanced sound retriever (ASR) technology

Apple air-play support

Audio return channel (ARC)

Bi-amplifying

Deep color

MCACC Pro

Auto power off

Pure direct mode

Dual-zone capability

Smartphone remote control

Sound features

Sound output mode

Surround Sound
Surround Sound

Audio D/A converter

32bit / 192kHz
32bit / 384kHz

Surround sound effects

Theater-Dimensional Virtual Surround
Theater-Dimensional Virtual Surround

Surround system class

7.2 channel
7.2 channel

Digital sound processor (DSP)

DSP preset qty

4
6

Digital content protection

HDCP 2.2
has not

Clock

Built-in clock

Sleep timer

has not

Dimensions

Shipping size

14.9 x 17.1 x 6.8 inches
12.9 x 17.1 x 6.8 inches

Product weight

20 pounds
20.7 pounds

Onkyo TX-NR575 overview

Onkyo TX-NR646 overview

AV receivers comparison rating

  • better
  • worse
  • 42
  • 26.5
  • 42Onkyo TX-NR575
  • 26.5Onkyo TX-NR646

The best receiver is Onkyo TX-NR575. Check Onkyo TX-NR575 price on Amazon