Sony STR-ZA3100ES vs Marantz SR6010 comparison definitely makes sense.
Considered AV receivers have the same number of channels 7.2. Regarding power, then STR-ZA3100ES has such a W/Ohm ratio - 70/8, 90/6 when SR6010 has a power of 110/8, 150/6. The THD is 0.09% for the STR-ZA3100ES but 0.05% for the SR6010. Both the STR-ZA3100ES 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.
Only the Marantz SR6010 can connect to the Internet via WI-FI. Rivals from our review have Bluetooth support. Only the SR6010 supports Spotify.
These units support HDR technology. 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 SR6010 can scale the input HDMI signal, unlike the STR-ZA3100ES. Dolby Vision technology found support only on the STR-ZA3100ES.
The Sony STR-ZA3100ES has 6/2 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 STR-ZA3100ES. 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 SR6010 has a built-in phono stage for connecting a vinyl player.
Each of the AV receivers from our review supports 2 Multi-room zones. A voice control is not available. An ECO mode is only available for the SR6010. Both STR-ZA3100ES 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.