Marantz AV8805 vs Onkyo TX-SR383 – that is a question.
The number of channels for receivers is different - 13.2 versus 7.2, respectively, for devices. The value of total harmonic distortion is also different, and for the AV8805 it is 0.08%, but for the TX-SR383 it is 0.09%.
The manufacturer installed different DACs, the AV8805 received the model AK4490 384 KHz/32-bit, but the TX-SR383 is equipped with 192 KHz/24-bit. The Bi-amping function is implemented only in the Marantz AV8805. The model AV8805 can transmit an audio signal directly to the amplifier and bypasses any DSP processing.
Wireless Internet connection via WIFI is only possible with AV8805. Each of the receivers has a Bluetooth connector. The AV8805 has access to the Spotify service.
Support for the HDR function can only boast of each of the AV receivers. The quality of 4K/60Hz signal remains unchanged when transmitting from a source to a TV or projector via HDMI for both receivers. Signaling over HDMI in standby mode can provide the AV8805 and the TX-SR383. Video scaling is only possible with the AV8805. Operation with the Dolby Vision is only possible with the AV8805.
The number of HDMI inputs/outputs varies depending on the receiver, the AV8805 has 8/3, and the TX-SR383 has 4/1. HDMI Audio Return Channel is implemented in both devices. HDMI eARC is only supported by the AV8805. When comparing receivers, it becomes clear that each of the rivals can work with HDMI CEC. AV8805 and TX-SR383 support the standard HDCP 2.2. In the presence of a built-in phono stage for connecting a vinyl player only at Marantz AV8805.
Unlike the AV8805 where 3 Multi zones is provided, the TX-SR383 works with 2 Multi zones. There is an ECO mode in AV8805. The Marantz AV8805 can be properly configured using the setup assistant.
A Dolby Atmos multichannel audio format is available only in the AV8805. Only in the AV8805 realized a DTS:X surround technology.