Marantz AV8805 vs Onkyo TX-SR494 – that is a question.
The number of channels for receivers is different - 13.2 versus 7.2, respectively, for devices. A common feature for devices is the same total harmonic distortion - 0.08%.
The manufacturer installed different DACs, the AV8805 received the model AK4490 384 KHz/32-bit, but the TX-SR494 is equipped with AKM 384 KHz/32-bit. Each of the compared opponents supports Bi-amping. Both Marantz AV8805 and Onkyo TX-SR494 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. 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-SR494. 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-SR494 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-SR494 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-SR494 works with 2 Multi zones. There is an ECO mode in AV8805. The Marantz AV8805 and the Onkyo TX-SR494 can be properly configured using the setup assistant.
A Dolby Atmos multichannel audio format is available both models. A DTS:X surround technology is supported by devices from our comparison.