Onkyo TX-RZ920 vs Onkyo TX-NR555 review

Votes 1 1
Rating 5 5

AV receivers comparison chart

Onkyo TX-RZ920 vs Onkyo TX-NR555 review

Onkyo TX-RZ920
vs
Onkyo TX-NR555

An affordable AV receiver is always a good option to consider, so Onkyo TX-RZ920 vs Onkyo TX-NR555 comparison definitely makes sense.

Amplifier

A significant difference between the receivers in the number of channels, Onkyo TX-RZ920 has 9.2 versus 7.2 for Onkyo TX-NR555. Regarding power, then TX-RZ920 has such a W/Ohm ratio - 135/8, 175/6 when TX-NR555 has a power of 130/6. The THD is 0.04% for the TX-RZ920 but 0.08% for the TX-NR555.

Audio features

Characteristics of digital to analog converter (DAC) are different, AK4490 384 KHz/32-bit for TX-RZ920 and Hi-Grade 384 KHz/32-bit for the TX-NR555. Both the TX-RZ920 and the TX-NR555 support Bi-amping. Each of the AV receivers can transmit an audio signal directly to the amplifier and bypasses any DSP processing.

Connectivity

WI-FI modules have the same characteristics: 2.4/5GHz. Rivals from our review have Bluetooth support. The Onkyo TX-RZ920 has support for AirPlay, AirPlay 2, and its competitor in our comparison - AirPlay. Spotify can be used on each receiver. The TX-RZ920 can work with the audio stream from Deezer, TIDAL, Pandora, TuneIn Radio, and the TX-NR555 can receive a content from Deezer, TIDAL, Pandora. Compared AV receivers retain the quality of 4K/60Hz signal when transmitting from a source to a TV or projector. HDMI signal transmission in standby mode is implemented in each of the devices. The TX-RZ920 can scale the input HDMI signal, unlike the TX-NR555. Dolby Vision technology found support only on the TX-RZ920.

Extensive connections

The Onkyo TX-RZ920 has 8/2 HDMI inputs/outputs versus 6/1 HDMI connectors of the Onkyo TX-NR555.Onkyo TX-RZ920 connectionsOnkyo TX-NR555 connections The HDMI Audio Return Channel (ARC) feature supports both devices. The HDMI eARC is available only on the TX-RZ920. The Consumer Electronics Control (CEC) feature is present in most modern AV receivers and the models in our comparison are no exception. Both models support the standard HDCP 2.2. These compared receivers have a built-in phono stage for connecting a vinyl player.

Additional features

The TX-RZ920 supports 3 Multi-room zones, versus 2 for the TX-NR555. An ECO mode is only available for the TX-NR555. The setup assistant will help you configure Onkyo TX-RZ920.

Multichannel surround

Both devices have support for Dolby Atmos multichannel audio format. The surround sound technology DTS:X is supported by devices under review.

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General

Item

Onkyo TX-RZ920
Onkyo TX-NR555

Model

TX-RZ920
TX-NR555

Brand

Onkyo
Onkyo

Reviews

24
82

Amplifier

Channels

9.2
7.2

Stereo power (RMS), W/Ohm

135/8, 175/6
130/6

Output impedance, Ohm

8, 6
6

Frequency response

5Hz-100KHz
10Hz-100KHz

THD in stereo, %

0.04
0.08

Audio features

Digital to analog converter (DAC)

AK4490 384 KHz/32-bit
Hi-Grade 384 KHz/32-bit

Bi-amping

Pure direct (straight)

Auto speaker calibration

AccuEQ
AccuEQ

Speaker A/B switching

Other audio features

Theater-Dimensional, Hi-Res audio, Dynamic Audio Amplification
Double Bass Function, CinemaFILTER

Connectivity

Wi-Fi

2.4/5GHz
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, TuneIn Radio
Deezer, TIDAL, Pandora

Extensive connection

HDMI input/output

8/2
6/1

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

2
1

Composite input

2
2

Component input/output

2/0
2/0

Phono (MM) input

Front panel connectors

HDMI, phones, setup mic
phones, setup mic, AUX

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
analog to HDMI

Analog to HDMI scaling

HDMI to HDMI scaling

Dolby Vision

Other video features

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

Additional features

Voice control

Google Assistant

App control

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

Display

colour OSD
colour OSD

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

has not
has not

Multi-room

Multi-room zones

3
2

Zone audio output

speaker, preout
speaker, preout

Zone HDMI output

Multi-room control

Onkyo Controller app, FlareConnect
FlareConnect

RS-232

1
0

Remote control input/output (IR)

1/0
0/0

DC trigger output (12V)

2
0

Multichannel surround

Dolby Atmos

Dolby TrueHD

Dolby Surround

Dolby (other)

Dolby Digital Plus
has not

DTS:X

DTS HD Master

DTS Virtual:X

DTS Neural:X

DTS (other)

DTS-ES, DTS 96/24, DTS-HD, DTS-EXPRESS
has not

Auro-3D

IMAX Enhanced

Multichannel stereo

Audio file formats

MP3

WMA

AAC

WAV

FLAC

ALAC

Other audio file formats

AIFF
has not

Power

Operational power consumption, W

310
460

Standby consumption, W

0.1
0.1

Removable power cord

User manual

Manual

Dimensions

Size W x H x D, cm/inches

43.5 x 20 x 45.3/17 x 7.8 x 17.8
43.5 x 17.3 x 37.8/17 x 6.7 x 14.5

Weight, kg/lbs

16.3/35.9
9.4/20.7

Other

Release year

2017
2016
Onkyo TX-RZ920
Onkyo TX-NR555
Onkyo TX-RZ920
Onkyo TX-NR555

AV receivers SoundInspiration comparison rating

  • better
  • worse
  • 8.4
  • 7
  • 8.4Onkyo TX-RZ920
  • 7Onkyo TX-NR555