Pioneer VSX-531 vs Harman Kardon AVR 1510 comparison definitely makes sense.
Considered AV receivers have the same number of channels 5.1. Regarding power, then VSX-531 has such a W/Ohm ratio - 80/8 20Hz-20KHz, 140/6 1KHz when AVR 1510 has a power of 75/8 1KHz, 75/6 1KHz. The THD is 0.08% for the VSX-531 but 0.09% for the AVR 1510.
Competitors' digital to analog converter (DAC) is identical to 192 KHz/24-bit. None of the models support Bi-amping. The Pioneer VSX-531 can transmit an audio signal directly to the amplifier and bypasses any DSP processing.
Both models do not have WI-FI support. Only the VSX-531 has Bluetooth support. Each of these units does not support Apple Music. Competitors do not have built-in Spotify service.
Only the Pioneer VSX-531 has support for High dynamic range (HDR). Compared AV receivers retain the quality of 4K 60p signal when transmitting from a source to a TV or projector. HDMI signal transmission in standby mode is implemented in each of the devices. Both competitors are not able to scale the HDMI signal. The HDR standard - Dolby Vision is not supported by these receivers.
Each receiver has 4/1 HDMI inputs/outputs. The HDMI Audio Return Channel (ARC) feature supports both devices. Unfortunately, HDMI eARC is not available on monitored devices. Of the two receivers in our comparison, HDMI CEC is present in only the VSX-531. The VSX-531 supports the protection of digital content of the standard HDCP 2.2, versus HDCP 1.4 in the AVR 1510. Receivers do not have a built-in phono stage for connecting a vinyl player. A voice control is not available. An ECO mode is only available for the VSX-531. Unfortunately, the setup assistant is not available in each of the models.
None of the rivals equipped with Dolby Atmos multichannel audio decoder. The receivers do not support the surround sound technology DTS:X.
The Pioneer VSX-531 is better receiver in this comparison. Check Pioneer VSX-531 price