It makes sense comparing Pioneer SC-LX501 vs Marantz SR7015 because they both are able to give some premium features.
A significant difference between the receivers in the number of channels, Pioneer SC-LX501 has 7.2 versus 9.2 for Marantz SR7015. Regarding power, then SC-LX501 has such a W/Ohm ratio - 120/8, 180/6 when SR7015 has a power of 125/8, 165/6. The THD is 0.08% for the SC-LX501 but 0.05% for the SR7015. Both the SC-LX501 and the SR7015 support Bi-amping. Each of the AV receivers can transmit an audio signal directly to the amplifier and bypasses any DSP processing.
WI-FI modules have the same characteristics: 2.4/5GHz. Rivals from our review have Bluetooth support. The Pioneer SC-LX501 has support for AirPlay, and its competitor in our comparison - AirPlay, AirPlay 2. Spotify can be used on each receiver. The SC-LX501 can work with the audio stream from Deezer, TIDAL, Pandora, TuneIn Radio, and the SR7015 can receive a content from Deezer, TIDAL, Pandora, SiriusXM, Napster, SoundCloud. HDMI signal transmission in standby mode is implemented in each of the devices. Both rivals can scale the resolution of the incoming HDMI signal. The HDR standard - Dolby Vision is supported by these receivers.
The Pioneer SC-LX501 has 7/2 HDMI inputs/outputs versus 8/3 HDMI connectors of the Marantz SR7015. The HDMI Audio Return Channel (ARC) feature supports both devices. The HDMI eARC is available only on the SR7015. The Consumer Electronics Control (CEC) feature is present in most modern AV receivers and the models in our comparison are no exception. The SC-LX501 supports the protection of digital content of the standard HDCP 2.2, versus HDCP 2.3 in the SR7015. These compared receivers have a built-in phono stage for connecting a vinyl player.
The SC-LX501 supports 2 Multi-room zones, versus 3 for the SR7015. An ECO mode is only available for the SR7015. Both SC-LX501 and SR7015 can be configured using the Setup assistant.
Both devices have support for Dolby Atmos multichannel audio format. The surround sound technology DTS:X is supported by devices under review.
The Marantz SR7015 is better receiver in this comparison. Check Marantz SR7015 price