It’s strongly recommended to compare different receivers if you want to choose the best one: Marantz NR1711 vs Pioneer VSX-531.
The number of channels for receivers is different - 7.2 versus 5.1, respectively, for devices. In terms of power, there are differences, the NR1711 has such a ratio W/Ohm - 50/8, 70/6, while the VSX-531 has a power of 80/8, 140/6. A common feature for devices is the same total harmonic distortion - 0.08%. The Bi-amping function is implemented only in the Marantz NR1711. Both Marantz NR1711 and Pioneer VSX-531 can transmit an audio signal directly to the amplifier and bypasses any DSP processing. Each of the receivers has a Bluetooth connector. The NR1711 has access to the Spotify service. Signaling over HDMI in standby mode can provide the NR1711 and the VSX-531. Video scaling is only possible with the NR1711. Operation with the Dolby Vision is only possible with the NR1711.
The number of HDMI inputs/outputs varies depending on the receiver, the NR1711 has 6/1, and the VSX-531 has 4/1. HDMI Audio Return Channel is implemented in both devices. HDMI eARC is only supported by the NR1711. When comparing receivers, it becomes clear that each of the rivals can work with HDMI CEC. The NR1711 has support for the standard HDCP 2.3, compared to the VSX-531, which supports the standard HDCP 2.2. In the presence of a built-in phono stage for connecting a vinyl player only at Marantz NR1711. There is an ECO mode in either AV receiver. The Marantz NR1711 can be properly configured using the setup assistant.
A Dolby Atmos multichannel audio format is available only in the NR1711. Only in the NR1711 realized a DTS:X surround technology.