It makes sense comparing Pioneer SC-LX801 vs Yamaha RX-A750 because they both are able to give some premium features.
A significant difference between the receivers in the number of channels, Pioneer SC-LX801 has 9.2 versus 7.2 for Yamaha RX-A750. Regarding power, then SC-LX801 has such a W/Ohm ratio - 140/8 20Hz-20KHz, 200/6 1KHz, 255/4 1KHz when RX-A750 has a power of 90/6 20Hz-20KHz, 150/8 1KHz, 150/4 1KHz. The THD is 0.08% for the SC-LX801 but 0.06% for the RX-A750.
Characteristics of digital to analog converter (DAC) are different, ESS SABRE32 Ultra 192 KHz/32-bit for SC-LX801 and Burr-Brown 192 KHz/24-bit for the RX-A750. Both the SC-LX801 and the RX-A750 support Bi-amping. 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. The Apple Music service is implemented on considered devices: AirPlay. Spotify can be used on each receiver. The SC-LX801 can work with the audio stream from Deezer, TIDAL, Pandora, and the RX-A750 can receive a content from Pandora, Napster, JUKE, Rhapsody. 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 rivals can scale the resolution of the incoming HDMI signal. Dolby Vision technology found support only on the SC-LX801.
The Pioneer SC-LX801 has 8/2 HDMI inputs/outputs versus 6/1 HDMI connectors of the Yamaha RX-A750. The HDMI Audio Return Channel (ARC) feature supports both devices. Unfortunately, HDMI eARC is not available on monitored devices. The Consumer Electronics Control (CEC) feature is present in most modern AV receivers and the models in our comparison are no exception. Both models support the standard HDCP 2.2. The SC-LX801 has a built-in phono stage for connecting a vinyl player.
The SC-LX801 supports 3 Multi-room zones, versus 2 for the RX-A750. A voice control is not available. An ECO mode is only available for the RX-A750. Both SC-LX801 and RX-A750 can be configured using the Setup assistant.
Both devices have support for Dolby Atmos multichannel audio format. A surround technology DTS:X is supported only by the SC-LX801.
The Pioneer SC-LX801 is better receiver in this comparison. Check Pioneer SC-LX801 price