Onkyo TX-RZ920 vs Onkyo TX-SR373

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Votes 1 1
Rating 5 5

TX-RZ920 vs TX-SR373 comparison chart

Onkyo TX-RZ920 vs Onkyo TX-SR373 review

Onkyo TX-RZ920
vs
Onkyo TX-SR373

The Onkyo TX-RZ920 vs Onkyo TX-SR373 comparison makes sense because it shows what devices in their segments can offer. According to the results of our review, Onkyo TX-RZ920 received 8.4 points out of 10 possible, and Onkyo TX-SR373 was rated 4.2 points. Both AV receivers were introduced in 2017. TX-RZ920 is more suitable as the heart of home theater system than its opponent - TX-SR373.

Main advantages Onkyo TX-RZ920 over Onkyo TX-SR373

  • More channels, namely 9, makes this receiver more profitable than its 5-channel competitor.
  • Thanks to 3 multi-room zones support, TX-RZ920 bypasses its competitor without multizone support.
  • There is Wi-Fi support.
  • The Spotify support is an exclusive advantage.
  • There is support for Apple AirPlay.
  • Include HDMI eARC function.
  • Surround sound ensures the availability of Dolby Atmos.
  • Object-oriented sound ensures the availability of DTS:X.

Main advantages Onkyo TX-SR373 over Onkyo TX-RZ920

  • We do not know advantages

Amplifiers

For the built-in amplifier, the devices received different marks - 9 and 6, respectively, on a 10-point scale.

TX-RZ920
9
TX-SR373
6

The number of channels is equal to the number of possible connected speakers. The Onkyo TX-RZ920 supports 9.2-channels sound, but Onkyo TX-SR373 supports a 5.1-channels configuration.

RMS stands for the actual power of the receiver. The higher this value, the louder the sound can be produced. The differences between the models in terms of RMS power are significant - for the TX-RZ920 this value is 175/6 W/Ohm, and for the TX-SR373 it is 135/6 W/Ohm.

TX-RZ920 TX-SR373
Channels9.25.1
Stereo power (RMS), W/Ohm135/8, 175/6135/6
Output impedance, Ohm8, 66
Frequency response5Hz-100KHz5Hz-100KHz
THD in stereo, %0.040.06

Audio features

After reviewing the audio features of each model, we can rate the TX-RZ920 8 out of 10, and the TX-SR373 - 5.

TX-RZ920
8
TX-SR373
5

Bi-amping is the amplification of one speaker with two amplifiers. This amplification method has a positive effect on sound quality. Bi-amping is possible only on the TX-RZ920.

Pure Direct mode feeds sound directly to the amplifier and bypasses any DSP processing. Only Onkyo TX-RZ920 has Pure Direct mode.

Most receivers now come with a microphone included. It is with the help of this microphone that the auto-calibration system functions, which adjusts the sound of the receiver to the room.

TX-RZ920 TX-SR373
Digital to analog converter (DAC)AK4490 384 KHz/32-bit192 KHz/24-bit
Bi-amping
Pure direct (straight)
Auto speaker calibrationAccuEQAccuEQ
Speaker A/B switching
Other audio featuresTheater-Dimensional, Hi-Res audio, Dynamic Audio Amplificationhas not

Connectivity

The connectivity of competitors in our comparison is markedly different, Onkyo TX-RZ920 scored 8, and Onkyo TX-SR373 scored 5 out of 10.

TX-RZ920
8
TX-SR373
5

Bluetooth connection is now one of the main communication protocols for the receiver's control or even music broadcasting.

Wired internet connection via RJ45 allows receiver faster connection than wireless or even use NAS storages. Wired connection via RJ45 is possible in the TX-RZ920 only.

TX-RZ920 TX-SR373
Wi-Fi2.4/5GHz
USB1 (USB 2.0)1 (USB 2.0)
Bluetooth
Ethernet (RJ45)1
DLNA
MHL

Streaming services

Now music streaming services are gaining more and more popularity. They allow users to listen to millions of songs by subscription.

TX-RZ920 TX-SR373
Apple Music (AirPlay)AirPlay, AirPlay 2
Amazon Music
Spotify
Other streaming servicesDeezer, TIDAL, Pandora, TuneIn Radiohas not

Extensive connections

The presence of many connectors makes the receiver more versatile. But there are also narrowly targeted models, the number of connectors which are limited to a certain area of use. And when choosing their own receiver, users need to consider exactly your goals for using the receiver. For extensive connection, Onkyo TX-RZ920 got 9 points, but Onkyo TX-SR373 received 6 points.

TX-RZ920
9
TX-SR373
6

Onkyo TX-RZ920 is equipped with 8/2 HDMI inputs and outputs, and Onkyo TX-SR373 has 4/1 HDMI inputs and outputs.

HDMI eARC is the next step in the development of audio return channel technology, which works in conjunction with HDMI 2.1. Using eARC provides the highest sound quality for home audio systems. HDMI eARC is available only on Onkyo TX-RZ920.

Connecting a vinyl player or phonograph is possible using a Phono input which is represented by mini-jack or RCA connectors. Only the TX-RZ920 has a Phono interface.

TX-RZ920 TX-SR373
HDMI input/output8/24/1
HDMI ARC (Audio Return Channel)
HDMI eARC (Enhanced Audio Return Channel)
HDMI CEC
Digital content protection (HDCP)HDCP 2.2HDCP 2.2
Subwoofer output (LFE)21
Headphone output1 x 6.31 x 6.3
Optical digital input21
Coaxial digital input21
Composite input22
Component input/output2/00/0
Phono (MM) input
Front panel connectorsHDMI, phones, setup micUSB, phones, setup mic
Multi channel preamp output

Video features

The AV receiver is the heart of the home theater. And in this case, support for all current video formats ensures the best user experience, so it is very important to consider this when choosing a device. Video features of the TX-RZ920 were rated 10 out of 10 against the 5 for the TX-SR373.

TX-RZ920
10
TX-SR373
5

Most of the AV receivers have a video scaling function, it is the process of reformatting the video signal to a higher resolution without losing the quality of the image. Upscaling the video signal resolution is possible only with Onkyo TX-RZ920.

TX-RZ920 TX-SR373
HDR (High Dynamic Range)HDR10
4K signal pass-through4K/60Hz4K/60Hz
8K signal pass-through
HDMI signal pass-through
3D signal pass-through
HDMI pass-through in standby mode
Video conversionanalog to HDMI
Analog to HDMI scaling
HDMI to HDMI scaling
Dolby Vision
Other video featuresHLG, BT.2020DeepColor, x.v.Color

Additional features

In terms of evaluating additional features, the TX-RZ920 got 8 points, but the TX-SR373 has 5.

TX-RZ920
8
TX-SR373
5

Voice control allows you to control the basic functions of the receiver through a smartphone, smart speaker or using the microphone that comes with the kit. The TX-RZ920 can be controlled by voice via Google Assistant.

TX-RZ920 TX-SR373
Voice controlGoogle Assistant
App controliPhone, iPad, iPod, AndroidiPhone, iPod, Android
Displaycolour OSDfluorescent
TunerAM, FMAM, FM
Sleep timer
Auto power off
ECO mode
Graphical user interface (GUI)
Setup assistant
Firmware updatenetwork, USBUSB
Other additional featureshas nothas not

Multi-room

As the center of a home media system, each multichannel receiver has an additional set of terminals for connecting the second set of speakers to create additional audio space in Zone 2 or even Zone 3 where audio can have the separate source.

TX-RZ920 TX-SR373
Multi-room zones3has not
Zone audio outputspeaker, preouthas not
Zone HDMI outputhas not
Multi-room controlOnkyo Controller app, FlareConnecthas not
RS-23210
Remote control input/output (IR)1/00/0
DC trigger output (12V)20

Multichannel surround

Onkyo TX-RZ920 got 7 points for the multichannel surround sound and Onkyo TX-SR373 got 5.

TX-RZ920
7
TX-SR373
5

Dolby Atmos' particularity is that this is the object-oriented sound format, that is, each audio signal object is independently sounded and connected to its spatial position. Onkyo TX-RZ920 can create 3D sound due to the Dolby Atmos support.

DTS:X is an algorithm used by the processor to create sound scenes, where sounds connected directly to objects rather than channels, and to determine the optimum sound output distribution in space. Surround sound with DTS:X is available only on the TX-RZ920.

TX-RZ920 TX-SR373
Dolby Atmos
Dolby TrueHD
Dolby Surround
Dolby (other)Dolby Digital PlusDolby Digital Plus
DTS:X
DTS HD Master
DTS Virtual:X
DTS Neural:X
DTS (other)DTS-ES, DTS 96/24, DTS-HD, DTS-EXPRESSDTS 96/24, DTS-HD
Auro-3D
IMAX Enhanced
Multichannel stereo
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