It makes sense comparing Onkyo TX-SR383 vs Marantz CINEMA 60 because they both are able to give some premium features.
Considered AV receivers have the same number of channels 7.2. Regarding power, then TX-SR383 has such a W/Ohm ratio - 100/8, 135/6 when CINEMA 60 has a power of 100/8, 140/6. The THD is 0.09% for the TX-SR383 but 0.08% for the CINEMA 60.
Characteristics of digital to analog converter (DAC) are different, 192 KHz/24-bit for TX-SR383 and 192 KHz/32-bit for the CINEMA 60. Only the CINEMA 60 supports Bi-amping feature. The Marantz CINEMA 60 can transmit an audio signal directly to the amplifier and bypasses any DSP processing. Rivals from our review have Bluetooth support. Only the CINEMA 60 supports Spotify. HDMI signal transmission in standby mode is implemented in each of the devices. The CINEMA 60 can scale the input HDMI signal, unlike the TX-SR383. Dolby Vision technology found support only on the CINEMA 60.
The Onkyo TX-SR383 has 4/1 HDMI inputs/outputs versus 6/3 HDMI connectors of the Marantz CINEMA 60. The HDMI Audio Return Channel (ARC) feature supports both devices. The HDMI eARC is available only on the CINEMA 60. The Consumer Electronics Control (CEC) feature is present in most modern AV receivers and the models in our comparison are no exception. The TX-SR383 supports the protection of digital content of the standard HDCP 2.2, versus HDCP 2.3 in the CINEMA 60. The CINEMA 60 has a built-in phono stage for connecting a vinyl player.
Each of the AV receivers from our review supports 2 Multi-room zones. An ECO mode is only available for the CINEMA 60. The setup assistant will help you configure Marantz CINEMA 60.
Only the CINEMA 60 has a Dolby Atmos multichannel audio format support. A surround technology DTS:X is supported only by the CINEMA 60.