Pioneer SC-LX501 vs Harman Kardon AVR 1510 comparison definitely makes sense.
A significant difference between the receivers in the number of channels, Pioneer SC-LX501 has 7.2 versus 5.1 for Harman Kardon AVR 1510. Regarding power, then SC-LX501 has such a W/Ohm ratio - 120/8 20Hz-20KHz, 180/6 1KHz when AVR 1510 has a power of 75/8 1KHz, 75/6 1KHz. The THD is 0.08% for the SC-LX501 but 0.09% for the AVR 1510.
Characteristics of digital to analog converter (DAC) are different, AK4458 384 KHz/32-bit for SC-LX501 and 192 KHz/24-bit for the AVR 1510. Only the SC-LX501 supports Bi-amping feature. The Pioneer SC-LX501 can transmit an audio signal directly to the amplifier and bypasses any DSP processing. Only the SC-LX501 has Bluetooth support. Only the SC-LX501 supports Spotify.
Only the Pioneer SC-LX501 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. The SC-LX501 can scale the input HDMI signal, unlike the AVR 1510. Dolby Vision technology found support only on the SC-LX501.
The Pioneer SC-LX501 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 SC-LX501. The SC-LX501 supports the protection of digital content of the standard HDCP 2.2, versus HDCP 1.4 in the AVR 1510. The SC-LX501 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 SC-LX501.
Only the SC-LX501 has a Dolby Atmos multichannel audio format support. A surround technology DTS:X is supported only by the SC-LX501.
The Pioneer SC-LX501 is better receiver in this comparison. Check Pioneer SC-LX501 price