Along with the growing popularity of custom home theater builds, the comparison of Yamaha RX-A8A and Onkyo TX-NR5100 takes place. According to the results of our review, Yamaha RX-A8A received 9.4 points out of 10 possible, and Onkyo TX-NR5100 was rated 7.3 points. Both AV receivers were introduced in 2021. Based on the data on the characteristics and features of both models, we can conclude that RX-A8A has better performance than TX-NR5100.
For the built-in amplifier, the devices received different marks - 10 and 7, respectively, on a 10-point scale.
The number of channels is equal to the number of possible connected speakers. The Yamaha RX-A8A supports 11.2-channels sound, but Onkyo TX-NR5100 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 RX-A8A this value is 150/8 W/Ohm, and for the TX-NR5100 it is 80/8 W/Ohm.
|Stereo power (RMS), W/Ohm||150/8||80/8, 165/6|
|Output impedance, Ohm||8||8, 6|
|THD in stereo, %||0.06||0.08|
The score for audio features is 9 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.
Speaker A/B switching allows you to change between the main and sub speaker set. Onkyo TX-NR5100 can work with the main and additional set of speakers - and switch between them.
|Digital to analog converter (DAC)||384 KHz/32-bit||384 KHz/32-bit|
|Pure direct (straight)||✔||✔|
|Auto speaker calibration||YPAO||AccuEQ|
|Speaker A/B switching||✖||✔|
|Other audio features||CINEMA DSP 3D, Compressed Music Enhancer, Virtual CINEMA FRONT||Advanced Music Optimizer, Hi-Res audio, Dynamic Audio Amplification, CinemaFILTER|
The connectivity of competitors in our comparison is equal and was rated 9 out of 10.
Bluetooth connection is now one of the main communication protocols for the receiver's control or even music broadcasting.
|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, AirPlay 2|
|Other streaming services||Deezer, TIDAL, Pandora, SiriusXM, Napster, SoundCloud||Deezer, TIDAL, Pandora, SiriusXM, Napster, SoundCloud|
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, Yamaha RX-A8A got 10 points, but Onkyo TX-NR5100 received 6 points.
Yamaha RX-A8A is equipped with 7/3 HDMI inputs and outputs, and Onkyo TX-NR5100 has 4/2 HDMI inputs and outputs.
|HDMI ARC (Audio Return Channel)||✔||✔|
|HDMI eARC (Enhanced Audio Return Channel)||✔||✔|
|Digital content protection (HDCP)||HDCP 2.3||HDCP 2.3|
|Subwoofer output (LFE)||2||2|
|Headphone output||1 x 6.3||1 x 6.3|
|Optical digital input||3||1|
|Coaxial digital input||2||1|
|Phono (MM) input||✔||✔|
|Front panel connectors||USB, phones, setup mic||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 the RX-A8A were rated 9 out of 10 against the 8 for the TX-NR5100.
|HDR (High Dynamic Range)||HDR10+||HDR10+|
|4K signal pass-through||4K/120Hz||4K/120Hz|
|8K signal pass-through||8K/60Hz||8K/60Hz|
|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||✔||✔|
|Other video features||x.v.Color, HLG, BT.2020, LipSync||DeepColor, x.v.Color, HLG, BT.2020, LipSyn, Deep Color|
In terms of evaluating additional features, both receivers received a score of 10 out of 10.
|Voice control||Amazon Alexa, Google Assistant, Siri, Josh.AI||Amazon Alexa, Google Assistant, Siri, Josh.AI|
|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||Web Control, App Control||Web Control, App Control|
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.
|Multi-room zones||3||has not|
|Zone audio output||preout||has not|
|Zone HDMI output||✔||has not|
|Remote control input/output (IR)||1/1||0|
|DC trigger output (12V)||2||0|
Yamaha RX-A8A got 8 points for the multichannel surround sound and Onkyo TX-NR5100 got 7.
Auro 3D gives a bit more versatility than Dolby Atmos or DTS:X and provides a hemispherical sound and enables a receiver to produce 3D sound stages. Only the Yamaha RX-A8A has Auro-3D on its feature list.
|Dolby (other)||Dolby Digital Plus, Dolby Atmos Height Virtualization||Dolby Digital Plus, Dolby Atmos Height Virtualization|
|DTS HD Master||✔||✔|
|DTS (other)||DTS-ES, DTS-HD||DTS-ES, DTS 96/24, DTS-HD, DTS-EXPRESS|