To get informed with the specs of the receivers, we suggest you read the Onkyo TX-RZ920 and Yamaha RX-A870BL review. According to the results of our review, Onkyo TX-RZ920 received 8.4 points out of 10 possible, and Yamaha RX-A870BL was rated 8.3 points. Both AV receivers were introduced in 2017. This review shows us that the TX-RZ920 is a better choice as a home AV receiver than the RX-A870BL.
For the built-in amplifier, the devices received different marks - 9 and 8, respectively, on a 10-point scale.
The number of channels is equal to the number of possible connected speakers. The Onkyo TX-RZ920 supports 9.2-channels sound, but Yamaha RX-A870BL supports a 7.2-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 135/8 W/Ohm, and for the RX-A870BL it is 100/8 W/Ohm.
|Stereo power (RMS), W/Ohm||135/8, 175/6||100/8|
|Output impedance, Ohm||8, 6||8|
|THD in stereo, %||0.04||0.06|
The score for audio features is 8 of 10 for both receivers.
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.
|Digital to analog converter (DAC)||AK4490 384 KHz/32-bit||Burr-Brown 192 KHz/24-bit|
|Pure direct (straight)||✔||✔|
|Auto speaker calibration||AccuEQ||YPAO|
|Speaker A/B switching||✖||✖|
|Other audio features||Theater-Dimensional, Hi-Res audio, Dynamic Audio Amplification||CINEMA DSP 3D, Compressed Music Enhancer, Virtual CINEMA FRONT, Extra Bass|
The connectivity of competitors in our comparison is equal and was rated 8 out of 10.
Bluetooth connection is now one of the main communication protocols for the receiver's control or even music broadcasting.
DLNA is the perfect way to use your local cloud storage to stream movies and music directly to a TV. You can use the DLNA protocol only with Yamaha RX-A870BL.
|USB||1 (USB 2.0)||1 (USB 2.0)|
Now music streaming services are gaining more and more popularity. They allow users to listen to millions of songs by subscription.
|Apple Music (AirPlay)||AirPlay, AirPlay 2||AirPlay|
|Other streaming services||Deezer, TIDAL, Pandora, TuneIn Radio||Deezer, TIDAL, Pandora, Napster, SiriusXM|
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, both receivers got 9 points on our 10-point scale.
Competitors in our review have 8/2 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.
|HDMI ARC (Audio Return Channel)||✔||✔|
|HDMI eARC (Enhanced Audio Return Channel)||✔||✖|
|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||2|
|Phono (MM) input||✔||✔|
|Front panel connectors||HDMI, phones, setup mic||USB, HDMI, phones, setup mic, AUX|
|Multi channel preamp output||✔||✔|
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 rivals in our comparison were rated 10 out of 10.
|HDR (High Dynamic Range)||HDR10||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||✔||✔|
|Other video features||HLG, BT.2020||DeepColor, x.v.Color, HLG, BT.2020|
In terms of evaluating additional features, the TX-RZ920 got 8 points, but the RX-A870BL has 10.
Yamaha RX-A870BL has the ECO mode.
|Voice control||Google Assistant||Amazon Alexa|
|App control||iPhone, iPad, iPod, Android||iPhone, iPad, iPod, Android|
|Display||colour OSD||colour OSD|
|Tuner||AM, FM||AM, FM|
|Auto power off||✔||✔|
|Graphical user interface (GUI)||✖||✔|
|Firmware update||network, USB||network, USB|
|Other additional features||has not||has not|
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.
|Zone audio output||speaker, preout||speaker, preout|
|Zone HDMI output||✔||✔|
|Multi-room control||Onkyo Controller app, FlareConnect||MusicCast|
|Remote control input/output (IR)||1/0||1/1|
|DC trigger output (12V)||2||1|
For the ability to create multichannel surround sound, each of the receivers received 7 points out of 10.
|Dolby (other)||Dolby Digital Plus||Dolby Digital Plus|
|DTS HD Master||✔||✔|
|DTS (other)||DTS-ES, DTS 96/24, DTS-HD, DTS-EXPRESS||DTS-EXPRESS, DTS Neo:6 Cinema, DTS Neo:6 Music|