Marantz SR6015 vs Marantz SR6010 comparison definitely makes sense.
A significant difference between the receivers in the number of channels, Marantz SR6015 has 9.2 versus 7.2 for Marantz SR6010. And as for power, it is the same and equal to 110/8, 150/6. The THD is 0.08% for the SR6015 but 0.05% for the SR6010. Both the SR6015 and the SR6010 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 Marantz SR6015 has support for AirPlay, AirPlay 2, and its competitor in our comparison - AirPlay. Spotify can be used on each receiver. The SR6015 can work with the audio stream from Deezer, TIDAL, Pandora, SiriusXM, Napster, SoundCloud, and the SR6010 can receive a content from Pandora, SiriusXM. 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 SR6015.
The Marantz SR6015 has 7/3 HDMI inputs/outputs versus 8/2 HDMI connectors of the Marantz SR6010. The HDMI Audio Return Channel (ARC) feature supports both devices. The HDMI eARC is available only on the SR6015. The Consumer Electronics Control (CEC) feature is present in most modern AV receivers and the models in our comparison are no exception. The SR6015 supports the protection of digital content of the standard HDCP 2.3, versus HDCP 2.2 in the SR6010. These compared receivers have a built-in phono stage for connecting a vinyl player.
Each of the AV receivers from our review supports 2 Multi-room zones. It is also worth noting that the ECO mode is presented in each of the receivers. Both SR6015 and SR6010 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.