It’s strongly recommended to compare different receivers if you want to choose the best one: Yamaha RX-V671 vs Pioneer VSX-531.
The number of channels for receivers is different - 7.1 versus 5.1, respectively, for devices. In terms of power, there are differences, the RX-V671 has such a ratio W/Ohm - 90/8 20Hz-20KHz, 150/4 1KHz, while the VSX-531 has a power of 80/8 20Hz-20KHz, 140/6 1KHz. The value of total harmonic distortion is also different, and for the RX-V671 it is 0.09%, but for the VSX-531 it is 0.08%.
The manufacturer installed different DACs, the RX-V671 received the model Burr-Brown 192 KHz/24-bit, but the VSX-531 is equipped with 192 KHz/24-bit. The Bi-amping function is implemented only in the Yamaha RX-V671. Both Yamaha RX-V671 and Pioneer VSX-531 can transmit an audio signal directly to the amplifier and bypasses any DSP processing.
Wireless connection to the Internet via WIFI can not be performed on these receivers. Each of the receivers has a Bluetooth connector. Support for Apple Music Services not implemented. Spotify is not available for these receivers.
Support for the HDR function can only boast of the VSX-531. The quality of 4K 60p signal remains unchanged when transmitting from a source to a TV or projector via HDMI for both receivers. Signaling over HDMI in standby mode can provide the RX-V671 and the VSX-531. Video scaling is only possible with the RX-V671. Review participants do not have the Dolby Vision feature.
The number of HDMI inputs/outputs varies depending on the receiver, the RX-V671 has 6/1, and the VSX-531 has 4/1. HDMI Audio Return Channel is implemented in both devices. HDMI eARC is not supported by the RX-V671 and the VSX-531. When comparing receivers, it becomes clear that each of the rivals can work with HDMI CEC. RX-V671 and VSX-531 support the standard HDCP 2.2. In the presence of a built-in phono stage for connecting a vinyl player only at Yamaha RX-V671. Voice control of the basic functions of the receiver is not realized in both models. There is an ECO mode in VSX-531. None of these units can be properly configured using the setup assistant.
Generally no support for a Dolby Atmos multichannel audio format. A DTS:X surround technology is not supported by devices from our comparison.
The Yamaha RX-V671 is better receiver in this comparison. Check Yamaha RX-V671 price