It’s strongly recommended to compare different receivers if you want to choose the best one: Marantz NR1608 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 NR1608 has such a ratio W/Ohm - 50/8, 70/6, while the VSX-531 has a power of 80/8, 140/6. The value of total harmonic distortion is also different, and for the NR1608 it is 0.05%, but for the VSX-531 it is 0.08%.
The manufacturer installed different DACs, the NR1608 received the model AK4458 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 NR1608. Both Marantz NR1608 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 NR1608 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 NR1608 and the VSX-531. Video scaling is only possible with the NR1608. Operation with the Dolby Vision is only possible with the NR1608.
The number of HDMI inputs/outputs varies depending on the receiver, the NR1608 has 8/1, and the VSX-531 has 4/1. HDMI Audio Return Channel is implemented in both devices. HDMI eARC is not supported by the NR1608 and the VSX-531. When comparing receivers, it becomes clear that each of the rivals can work with HDMI CEC. NR1608 and VSX-531 support the standard HDCP 2.2. Unlike most receivers, our models do not have a built-in phono stage for connecting a vinyl player. There is an ECO mode in either AV receiver. The Marantz NR1608 can be properly configured using the setup assistant.
A Dolby Atmos multichannel audio format is available only in the NR1608. Only in the NR1608 realized a DTS:X surround technology.