Pioneer VSX-531 vs Onkyo TX-RZ810 – that is a question.
The number of channels for receivers is different - 5.1 versus 7.2, respectively, for devices. In terms of power, there are differences, the VSX-531 has such a ratio W/Ohm - 80/8 20Hz-20KHz, 140/6 1KHz, while the TX-RZ810 has a power of 180/6 1KHz. A common feature for devices is the same total harmonic distortion - 0.08%.
The manufacturer installed different DACs, the VSX-531 received the model 192 KHz/24-bit, but the TX-RZ810 is equipped with AK4458 384 KHz/32-bit. The Bi-amping function is implemented only in the Onkyo TX-RZ810. Both Pioneer VSX-531 and Onkyo TX-RZ810 can transmit an audio signal directly to the amplifier and bypasses any DSP processing.
Wireless Internet connection via WIFI is only possible with TX-RZ810. Each of the receivers has a Bluetooth connector. The TX-RZ810 has access to the Spotify service.
Support for the HDR function can only boast of each of the AV receivers. 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 VSX-531 and the TX-RZ810. None of the devices can increase the resolution of the incoming video signal. Review participants do not have the Dolby Vision feature.
The number of HDMI inputs/outputs varies depending on the receiver, the VSX-531 has 4/1, and the TX-RZ810 has 8/2. HDMI Audio Return Channel is implemented in both devices. HDMI eARC is not supported by the VSX-531 and the TX-RZ810. When comparing receivers, it becomes clear that each of the rivals can work with HDMI CEC. VSX-531 and TX-RZ810 support the standard HDCP 2.2. In the presence of a built-in phono stage for connecting a vinyl player only at Onkyo TX-RZ810. Voice control of the basic functions of the receiver is not realized in both models. There is an ECO mode in VSX-531. The Onkyo TX-RZ810 can be properly configured using the setup assistant.
A Dolby Atmos multichannel audio format is available only in the TX-RZ810. Only in the TX-RZ810 realized a DTS:X surround technology.
The Onkyo TX-RZ810 is better receiver in this comparison. Check Onkyo TX-RZ810 price