Pioneer VSX-1131 vs Harman Kardon AVR 1510 comparison definitely makes sense.
A significant difference between the receivers in the number of channels, Pioneer VSX-1131 has 7.2 versus 5.1 for Harman Kardon AVR 1510. Regarding power, then VSX-1131 has such a W/Ohm ratio - 100/8, 170/6 when AVR 1510 has a power of 75/8, 75/6. The THD is 0.08% for the VSX-1131 but 0.09% for the AVR 1510.
Characteristics of digital to analog converter (DAC) are different, AK4458 384 KHz/32-bit for VSX-1131 and 192 KHz/24-bit for the AVR 1510. Only the VSX-1131 supports Bi-amping feature. The Pioneer VSX-1131 can transmit an audio signal directly to the amplifier and bypasses any DSP processing. Only the VSX-1131 has Bluetooth support. Only the VSX-1131 supports Spotify.
Only the Pioneer VSX-1131 has support for High dynamic range (HDR). Compared AV receivers retain the quality of 4K/60Hz signal when transmitting from a source to a TV or projector. HDMI signal transmission in standby mode is implemented in each of the devices. The VSX-1131 can scale the input HDMI signal, unlike the AVR 1510. Dolby Vision technology found support only on the VSX-1131.
The Pioneer VSX-1131 has 7/2 HDMI inputs/outputs versus 4/1 HDMI connectors of the Harman Kardon AVR 1510. 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-1131. Both models support the standard HDCP 2.2. The VSX-1131 has a built-in phono stage for connecting a vinyl player. A voice control is not available. An ECO mode is not present in each of the AV receivers. The setup assistant will help you configure Pioneer VSX-1131.
Only the VSX-1131 has a Dolby Atmos multichannel audio format support. A surround technology DTS:X is supported only by the VSX-1131.
The Pioneer VSX-1131 is better receiver in this comparison. Check Pioneer VSX-1131 price