Pioneer VSX-531 vs Yamaha RX-V4A comparison definitely makes sense.
A significant difference between the receivers in the number of channels, Pioneer VSX-531 has 5.1 versus 5.2 for Yamaha RX-V4A. Regarding power, then VSX-531 has such a W/Ohm ratio - 80/8, 140/6 when RX-V4A has a power of 80/6. The THD is 0.08% for the VSX-531 but 0.06% for the RX-V4A. Only the RX-V4A supports Bi-amping feature. Each of the AV receivers can transmit an audio signal directly to the amplifier and bypasses any DSP processing. Rivals from our review have Bluetooth support. Only the RX-V4A supports Spotify. HDMI signal transmission in standby mode is implemented in each of the devices. The RX-V4A can scale the input HDMI signal, unlike the VSX-531. Dolby Vision technology found support only on the RX-V4A.
Each receiver has 4/1 HDMI inputs/outputs. The HDMI Audio Return Channel (ARC) feature supports both devices. The HDMI eARC is available only on the RX-V4A. The Consumer Electronics Control (CEC) feature is present in most modern AV receivers and the models in our comparison are no exception. The VSX-531 supports the protection of digital content of the standard HDCP 2.2, versus HDCP 2.3 in the RX-V4A. Receivers do not have a built-in phono stage for connecting a vinyl player. It is also worth noting that the ECO mode is presented in each of the receivers. The setup assistant will help you configure Yamaha RX-V4A.
None of the rivals equipped with Dolby Atmos multichannel audio decoder. The receivers do not support the surround sound technology DTS:X.