Let's compare Yamaha RX-A8A versus Pioneer VSX-934 for an overview of all their pros and cons. According to the results of our review, Yamaha RX-A8A received 9.4 points out of 10 possible, and Pioneer VSX-934 was rated 7.4 points. The release date of RX-A8A is 2021, and VSX-934 is 2019. And as a result of the comparison, RX-A8A seems to be a better option for the role of a home theater center than VSX-934.
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 Pioneer VSX-934 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 VSX-934 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.
|Digital to analog converter (DAC)||384 KHz/32-bit||AK4458 384 KHz/32-bit|
|Pure direct (straight)||✔||✔|
|Auto speaker calibration||YPAO||MCACC|
|Speaker A/B switching||✖||✖|
|Other audio features||CINEMA DSP 3D, Compressed Music Enhancer, Virtual CINEMA FRONT||Advanced Sound Retriever|
The connectivity of competitors in our comparison is markedly different, Yamaha RX-A8A scored 9, and Pioneer VSX-934 scored 8 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)||2 (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|
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 Pioneer VSX-934 received 7 points.
Yamaha RX-A8A is equipped with 7/3 HDMI inputs and outputs, and Pioneer VSX-934 has 6/2 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 Yamaha RX-A8A.
The HDCP encryption protocol is now mandatory for most media devices. This security technology encrypts digital signals from one product to another. HDCP content-encryption protocol is present on Yamaha RX-A8A in the HDCP 2.3 version, and Pioneer VSX-934 has the HDCP 2.2 version.
|HDMI ARC (Audio Return Channel)||✔||✔|
|HDMI eARC (Enhanced Audio Return Channel)||✔||✖|
|Digital content protection (HDCP)||HDCP 2.3||HDCP 2.2|
|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||USB, 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 10 for the VSX-934.
With the 4K pass-through feature, the AV receiver sends "native" 4K signals to a 4K TV from a video source without any processing. The RX-A8A works with the 4K/120Hz video, and the VSX-934 has the 4K/60Hz.
The AV receiver passes "native" 8K signals from a video source to 8K TV without any encoding, with the 8k pass-through features. The 8K path-through is available only on Yamaha RX-A8A.
|HDR (High Dynamic Range)||HDR10+||HDR10|
|4K signal pass-through||4K/120Hz||4K/60Hz|
|8K signal pass-through||8K/60Hz||✖|
|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||x.v.Color, HLG, BT.2020, LipSync||HLG, BT.2020|
In terms of evaluating additional features, the RX-A8A got 10 points, but the VSX-934 has 6.
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 RX-A8A can be controlled by voice via Amazon Alexa, Google Assistant, Siri, Josh.AI. Only the Yamaha RX-A8A has the ECO mode.
|Voice control||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||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||preout||speaker, preout|
|Zone HDMI output||✔||✔|
|Remote control input/output (IR)||1/1||0/0|
|DC trigger output (12V)||2||0|
Yamaha RX-A8A got 8 points for the multichannel surround sound and Pioneer VSX-934 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|