Onkyo TX-RZ840 vs Onkyo TX-RZ740 review

Votes 1 1
Rating 5 5
Onkyo TX-RZ840
vs
Onkyo TX-RZ740

The present review is aimed to compare two AV receivers - Onkyo TX-RZ840 vs Onkyo TX-RZ740 that are meant to satisfy the needs of cinema and music lovers.

Amplifier

Considered AV receivers have the same number of channels 9.2. Regarding power, then TX-RZ840 has such a W/Ohm ratio - 180/6 1KHz when TX-RZ740 has a power of 100/8 20Hz-20KHz, 225/6 1KHz. The THD is the same and is 0.08%.

Audio features

Characteristics of digital to analog converter (DAC) are different, AKM 384 KHz/32-bit for TX-RZ840 and AK4458 384 KHz/32-bit for the TX-RZ740. Both the TX-RZ840 and the TX-RZ740 support Bi-amping. Each of the AV receivers can transmit an audio signal directly to the amplifier and bypasses any DSP processing.

Connectivity

Both models have the ability to connect to the Internet via WI-FI. Rivals from our review have Bluetooth support. The Apple Music service is implemented on considered devices: AirPlay, AirPlay 2. Spotify can be used on each receiver. Deezer, TIDAL, Pandora, TuneIn Radio - all of these streaming services have found application in each of the models.

Video features

Both AV receivers support HDR10 technology (High dynamic range). Compared AV receivers retain the quality of 4K 60p 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-RZ740 can scale the input HDMI signal, unlike the TX-RZ840. The HDR standard - Dolby Vision is supported by these receivers.

Extensive connections

Each receiver has 7/2 HDMI inputs/outputs.Onkyo TX-RZ840 connectionsOnkyo TX-RZ740 connections The HDMI Audio Return Channel (ARC) feature supports both devices. The HDMI eARC is available only on the TX-RZ840. 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

Each of the AV receivers from our review supports 3 Multi-room zones. Supported voice control technologies are identical - Google Assistant. An ECO mode is not present in each of the AV receivers. Both TX-RZ840 and TX-RZ740 can be configured using the Setup assistant.

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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Common

Product

Onkyo TX-RZ840
Onkyo TX-RZ740

Model

TX-RZ840
TX-RZ740

Brand

Onkyo
Onkyo

Reviews

36
6

Amplifier

Channels

9.2
9.2

Stereo power (RMS), W/Ohm

180/6 1KHz
100/8 20Hz-20KHz, 225/6 1KHz

Output impedance, Ohm

6
8, 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
AK4458 384 KHz/32-bit

Bi-amping

Pure direct (straight)

Auto speaker calibration

AccuEQ
AccuEQ

Speaker A/B switching

Connectivity

Wi-Fi

USB

1 (USB 2.0)
1 (USB 2.0)

Bluetooth

Ethernet (RJ45)

1
1

Streaming services

Apple Music (AirPlay)

AirPlay, AirPlay 2
AirPlay, AirPlay 2

Google Play Music

Amazon Music

Spotify

Other streaming services

Deezer, TIDAL, Pandora, TuneIn Radio
Deezer, TIDAL, Pandora, TuneIn Radio

Video features

HDR (High Dynamic Range)

HDR10
HDR10

4K signal pass-through

4K 60p
4K 60p

HDMI signal pass-through

3D signal pass-through

HDMI pass-through in standby mode

Video conversion

analog to HDMI

Analog to HDMI scaling

HDMI to HDMI scaling

Dolby Vision

Other video features

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

Additional features

Voice control

Google Assistant
Google Assistant

App control

iPhone, iPad, iPod, Android
iPhone, iPad, 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

network, USB
network, USB

Other additional features

IP Control
IP Control

Extensive connection

HDMI input/output

7/2
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
1

Coaxial digital input

1
1

Composite input

2
2

Component input/output

1/0
1/0

Phono (MM) input

Front panel connectors

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

Multi channel preamp output

Multi-room

Multi-room zones

3
3

Zone audio output

speaker, preout
speaker, preout

Zone HDMI output

Multi-room control

FlareConnect
FlareConnect

RS-232

1
1

Remote control input/output (IR)

1/0
1/0

DC trigger output (12V)

1
1

Multichannel surround

Dolby Atmos

Dolby TrueHD

Dolby Surround

DTS:X

DTS HD Master

DTS Virtual:X

Auro-3D

Power

Operational power consumption, W

870
750

Standby consumption, W

0.15
0.15

Removable power cord

User manual

Manual

Dimensions

Size W x H x D, cm/inches

43.5 x 20.1 x 39.8/17 x 7.8 x 15.3
43.5 x 17.7 x 37.9/17 x 6.8 x 14.5

Weight, kg/lbs

17/37.4
10.8/23.8
Onkyo TX-RZ840
Onkyo TX-RZ740
Onkyo TX-RZ840
Onkyo TX-RZ740

AV receivers SoundInspiration comparison rating

  • better
  • worse
  • 8.4
  • 8.5
  • 8.4Onkyo TX-RZ840
  • 8.5Onkyo TX-RZ740

The Onkyo TX-RZ740 is better receiver in this comparison. Check Onkyo TX-RZ740 price