An affordable AV receiver is always a good option to consider, so Yamaha RX-V6A vs Yamaha RX-A4A comparison definitely makes sense.
Considered AV receivers have the same number of channels 7.2. Regarding power, then RX-V6A has such a W/Ohm ratio - 100/8 when RX-A4A has a power of 110/8. The THD is the same and is 0.06%. Both the RX-V6A and the RX-A4A support Bi-amping. Each of the AV receivers can transmit an audio signal directly to the amplifier and bypasses any DSP processing.
WI-FI modules have the same characteristics: 2.4/5GHz. Rivals from our review have Bluetooth support. The Apple Music service is implemented on considered devices: AirPlay, AirPlay 2. Spotify can be used on each receiver. The RX-V6A can work with the audio stream from Deezer, TIDAL, Pandora, SiriusXM, Qobuz, and the RX-A4A can receive a content from Deezer, TIDAL, Pandora, SiriusXM, Napster, SoundCloud.
Compared AV receivers retain the quality of 4K/120Hz signal when transmitting from a source to a TV or projector. HDMI signal transmission in standby mode is implemented in each of the devices. Both rivals can scale the resolution of the incoming HDMI signal. The HDR standard - Dolby Vision is supported by these receivers.
The Yamaha RX-V6A has 7/1 HDMI inputs/outputs versus 7/3 HDMI connectors of the Yamaha RX-A4A. The HDMI Audio Return Channel (ARC) feature supports both devices. HDMI eARC is available in each model. The Consumer Electronics Control (CEC) feature is present in most modern AV receivers and the models in our comparison are no exception. Both models support the standard HDCP 2.3. These compared receivers have a built-in phono stage for connecting a vinyl player.
Each of the AV receivers from our review supports 2 Multi-room zones. The RX-V6A supports voice control via Amazon Alexa, Google Assistant, Siri, and the RX-A4A - Amazon Alexa, Google Assistant, Siri, Josh.AI. It is also worth noting that the ECO mode is presented in each of the receivers. Both RX-V6A and RX-A4A can be configured using the Setup assistant.
Both devices have support for Dolby Atmos multichannel audio format. The surround sound technology DTS:X is supported by devices under review.