It’s strongly recommended to compare different receivers if you want to choose the best one: Marantz AV8805 vs Pioneer VSX-531.
The number of channels for receivers is different - 13.2 versus 5.1, respectively, for devices. A common feature for devices is the same total harmonic distortion - 0.08%.
The manufacturer installed different DACs, the AV8805 received the model AK4490 384 KHz/32-bit, but the VSX-531 is equipped with 192 KHz/24-bit. The Bi-amping function is implemented only in the Marantz AV8805. Both Marantz AV8805 and Pioneer VSX-531 can transmit an audio signal directly to the amplifier and bypasses any DSP processing.
Wireless Internet connection via WIFI is only possible with AV8805. Each of the receivers has a Bluetooth connector. The AV8805 has access to the Spotify service.
Support for the HDR function can only boast of each of the AV receivers. The quality of 4K/60Hz 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 AV8805 and the VSX-531. Video scaling is only possible with the AV8805. Operation with the Dolby Vision is only possible with the AV8805.
The number of HDMI inputs/outputs varies depending on the receiver, the AV8805 has 8/3, and the VSX-531 has 4/1. HDMI Audio Return Channel is implemented in both devices. HDMI eARC is only supported by the AV8805. When comparing receivers, it becomes clear that each of the rivals can work with HDMI CEC. AV8805 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 Marantz AV8805. There is an ECO mode in either AV receiver. The Marantz AV8805 can be properly configured using the setup assistant.
A Dolby Atmos multichannel audio format is available only in the AV8805. Only in the AV8805 realized a DTS:X surround technology.