The Yamaha RX-V4A vs Pioneer VSX-933 comparison makes sense because it shows what devices in their segments can offer. According to the results of our review, Yamaha RX-V4A received 6.5 points out of 10 possible, and Pioneer VSX-933 was rated 7.8 points. The release date of RX-V4A is 2020, and VSX-933 is 2018. VSX-933 is more suitable as the heart of home theater system than its opponent - RX-V4A.
For the built-in amplifier, the devices received different marks - 6 and 8, respectively, on a 10-point scale.
The number of channels is equal to the number of possible connected speakers. The Yamaha RX-V4A supports 5.2-channels sound, but Pioneer VSX-933 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 VSX-933 this value is 165/6 W/Ohm, and for the RX-V4A it is 80/6 W/Ohm.
|Stereo power (RMS), W/Ohm||80/6||80/8, 165/6|
|Output impedance, Ohm||6||8, 6|
|THD in stereo, %||0.06||0.08|
After reviewing the audio features of each model, we can rate the RX-V4A 7 out of 10, and the VSX-933 - 9.
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)||N/A||AK4458 384 KHz/32-bit|
|Pure direct (straight)||✔||✔|
|Auto speaker calibration||YPAO||MCACC|
|Speaker A/B switching||✖||✖|
|Other audio features||CINEMA DSP, Compressed Music Enhancer, Virtual CINEMA FRONT||Advanced Sound Retriever, Hi-Res audio, Reflex Optimizer|
The connectivity of competitors in our comparison is markedly different, Yamaha RX-V4A scored 9, and Pioneer VSX-933 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|
|Other streaming services||Deezer, TIDAL, Pandora, SiriusXM, Qobuz||Deezer, TIDAL, Pandora, TuneIn Radio|
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-V4A got 5 points, but Pioneer VSX-933 received 7 points.
Yamaha RX-V4A is equipped with 4/1 HDMI inputs and outputs, and Pioneer VSX-933 has 6/1 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 Yamaha RX-V4A.
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-V4A in the HDCP 2.3 version, and Pioneer VSX-933 has the HDCP 2.2 version.
Connecting a vinyl player or phonograph is possible using a Phono input which is represented by mini-jack or RCA connectors. Only the VSX-933 has a Phono interface.
|HDMI ARC (Audio Return Channel)||✔||✔|
|HDMI eARC (Enhanced Audio Return Channel)||✔||✖|
|Digital content protection (HDCP)||HDCP 2.3||HDCP 2.2|
|Subwoofer output (LFE)||0||2|
|Headphone output||1 x 6.3||1 x 6.3|
|Optical digital input||1||1|
|Coaxial digital input||1||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-V4A were rated 7 out of 10 against the 10 for the VSX-933.
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-V4A works with the 4K/120Hz video, and the VSX-933 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-V4A.
|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 scaling||✖||✔|
|HDMI to HDMI scaling||✔||✔|
|Other video features||x.v.Color, HLG, BT.2020||DeepColor, x.v.Color, HLG, BT.2020|
In terms of evaluating additional features, the RX-V4A got 7 points, but the VSX-933 has 9.
Only the Yamaha RX-V4A has the ECO mode.
|Voice control||Amazon Alexa, Google Assistant, Siri||Google Assistant|
|App control||iPhone, iPad, iPod, Android||iPhone, iPad, iPod, Android|
|Display||colour OSD||colour OSD|
|Auto power off||✔||✔|
|Graphical user interface (GUI)||N/A||✔|
|Firmware update||network, USB||network, USB|
|Other additional features||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.
|Multi-room zones||has not||2|
|Zone audio output||has not||speaker, preout|
|Zone HDMI output||has not||✖|
|Remote control input/output (IR)||0/0||0/0|
|DC trigger output (12V)||0||0|
Yamaha RX-V4A got 5 points for the multichannel surround sound and Pioneer VSX-933 got 7.
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. Pioneer VSX-933 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 on the VSX-933.
|Dolby (other)||Dolby Digital Plus||Dolby Digital Plus|
|DTS HD Master||✔||✔|
|DTS (other)||DTS 96/24, DTS-HD, DTS-EXPRESS||DTS-ES, DTS 96/24, DTS-HD, DTS-EXPRESS|