An affordable AV receiver is always a good option to consider, so Pioneer VSX-531 vs Denon AVR-X6700H comparison definitely makes sense.
A significant difference between the receivers in the number of channels, Pioneer VSX-531 has 5.1 versus 11.2 for Denon AVR-X6700H. Regarding power, then VSX-531 has such a W/Ohm ratio - 80/8, 140/6 when AVR-X6700H has a power of 140/8, 175/6. The THD is 0.08% for the VSX-531 but 0.05% for the AVR-X6700H. Only the AVR-X6700H supports Bi-amping feature. Each of the AV receivers can transmit an audio signal directly to the amplifier and bypasses any DSP processing. Rivals from our review have Bluetooth support. Only the AVR-X6700H supports Spotify. HDMI signal transmission in standby mode is implemented in each of the devices. The AVR-X6700H can scale the input HDMI signal, unlike the VSX-531. Dolby Vision technology found support only on the AVR-X6700H.
The Pioneer VSX-531 has 4/1 HDMI inputs/outputs versus 8/3 HDMI connectors of the Denon AVR-X6700H. The HDMI Audio Return Channel (ARC) feature supports both devices. The HDMI eARC is available only on the AVR-X6700H. The Consumer Electronics Control (CEC) feature is present in most modern AV receivers and the models in our comparison are no exception. The VSX-531 supports the protection of digital content of the standard HDCP 2.2, versus HDCP 2.3 in the AVR-X6700H. The AVR-X6700H has a built-in phono stage for connecting a vinyl player. It is also worth noting that the ECO mode is presented in each of the receivers. The setup assistant will help you configure Denon AVR-X6700H.
Only the AVR-X6700H has a Dolby Atmos multichannel audio format support. A surround technology DTS:X is supported only by the AVR-X6700H.
The Denon AVR-X6700H is better receiver in this comparison. Check Denon AVR-X6700H price