Onkyo TX-SR383 vs Marantz CINEMA 40 comparison definitely makes sense.
A significant difference between the receivers in the number of channels, Onkyo TX-SR383 has 7.2 versus 9.2 for Marantz CINEMA 40. Regarding power, then TX-SR383 has such a W/Ohm ratio - 100/8, 135/6 when CINEMA 40 has a power of 125/8, 165/6. The THD is 0.09% for the TX-SR383 but 0.08% for the CINEMA 40.
Characteristics of digital to analog converter (DAC) are different, 192 KHz/24-bit for TX-SR383 and 192 KHz/32-bit for the CINEMA 40. Only the CINEMA 40 supports Bi-amping feature. The Marantz CINEMA 40 can transmit an audio signal directly to the amplifier and bypasses any DSP processing. Rivals from our review have Bluetooth support. Only the CINEMA 40 supports Spotify. HDMI signal transmission in standby mode is implemented in each of the devices. The CINEMA 40 can scale the input HDMI signal, unlike the TX-SR383. Dolby Vision technology found support only on the CINEMA 40.
The Onkyo TX-SR383 has 4/1 HDMI inputs/outputs versus 7/3 HDMI connectors of the Marantz CINEMA 40. The HDMI Audio Return Channel (ARC) feature supports both devices. The HDMI eARC is available only on the CINEMA 40. 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 40. The CINEMA 40 has a built-in phono stage for connecting a vinyl player.
The TX-SR383 supports 2 Multi-room zones, versus 3 for the CINEMA 40. An ECO mode is only available for the CINEMA 40. The setup assistant will help you configure Marantz CINEMA 40.
Only the CINEMA 40 has a Dolby Atmos multichannel audio format support. A surround technology DTS:X is supported only by the CINEMA 40.