The Onkyo TX-SR393 vs Marantz AV7703 comparison proves that these receivers have many common features.
A significant difference between the receivers in the number of channels, Onkyo TX-SR393 has 5.2 versus 11.2 for Marantz AV7703. The THD is the same and is 0.08%.
Characteristics of digital to analog converter (DAC) are different, AKM 384 KHz/32-bit for TX-SR393 and 192 KHz/32-bit for the AV7703. Only the AV7703 supports Bi-amping feature. The Marantz AV7703 can transmit an audio signal directly to the amplifier and bypasses any DSP processing. Rivals from our review have Bluetooth support. Only the AV7703 supports Spotify. 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. Both rivals can scale the resolution of the incoming HDMI signal. The HDR standard - Dolby Vision is supported by these receivers.
The Onkyo TX-SR393 has 4/1 HDMI inputs/outputs versus 8/3 HDMI connectors of the Marantz AV7703. 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. The AV7703 has a built-in phono stage for connecting a vinyl player.
The TX-SR393 supports 2 Multi-room zones, versus 3 for the AV7703. An ECO mode is only available for the AV7703. The setup assistant will help you configure Marantz AV7703.
Both devices have support for Dolby Atmos multichannel audio format. The surround sound technology DTS:X is supported by devices under review.
The Marantz AV7703 is better receiver in this comparison. Check Marantz AV7703 price