Onkyo TX-RZ830 vs Marantz SR6010 comparison definitely makes sense.
A significant difference between the receivers in the number of channels, Onkyo TX-RZ830 has 9.2 versus 7.2 for Marantz SR6010. Regarding power, then TX-RZ830 has such a W/Ohm ratio - 180/6 when SR6010 has a power of 110/8, 150/6. The THD is 0.08% for the TX-RZ830 but 0.05% for the SR6010.
Characteristics of digital to analog converter (DAC) are different, AK4458 384 KHz/32-bit for TX-RZ830 and 192 KHz/32-bit for the SR6010. Both the TX-RZ830 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 Apple Music service is implemented on considered devices: AirPlay. Spotify can be used on each receiver. The TX-RZ830 can work with the audio stream from Deezer, TIDAL, TuneIn Radio, and the SR6010 can receive a content from Pandora, SiriusXM. 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 TX-RZ830. Dolby Vision technology found support only on the TX-RZ830.
The Onkyo TX-RZ830 has 7/2 HDMI inputs/outputs versus 8/2 HDMI connectors of the Marantz SR6010. 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. These compared receivers have a built-in phono stage for connecting a vinyl player.
The TX-RZ830 supports 3 Multi-room zones, versus 2 for the SR6010. An ECO mode is only available for the SR6010. Both TX-RZ830 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.