The Yamaha RX-S602 vs Marantz AV7703 comparison proves that these receivers have many common features.
A significant difference between the receivers in the number of channels, Yamaha RX-S602 has 5.1 versus 11.2 for Marantz AV7703. The THD is the same and is 0.08%.
Characteristics of digital to analog converter (DAC) are different, Burr-Brown 384 KHz/32-bit for RX-S602 and 192 KHz/32-bit for the AV7703. Both the RX-S602 and the AV7703 support Bi-amping. Each of the AV receivers can transmit an audio signal directly to the amplifier and bypasses any DSP processing.
WI-FI modules have the same characteristics: 2.4/5GHz. Rivals from our review have Bluetooth support. The Apple Music service is implemented on considered devices: AirPlay, AirPlay 2. Spotify can be used on each receiver. The RX-S602 can work with the audio stream from Deezer, TIDAL, Pandora, Napster, SiriusXM, Qobuz, and the AV7703 can receive a content from Deezer, TIDAL, Pandora, Napster, iHeart Radio, SiriusXM, Sound Cloud. 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. The AV7703 can scale the input HDMI signal, unlike the RX-S602. Dolby Vision technology found support only on the AV7703.
The Yamaha RX-S602 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. The RX-S602 supports the protection of digital content of the standard HDCP 2.3, versus HDCP 2.2 in the AV7703. The AV7703 has a built-in phono stage for connecting a vinyl player.
The RX-S602 supports 2 Multi-room zones, versus 3 for the AV7703. The RX-S602 supports voice control via Amazon Alexa, Google Assistant, and the AV7703 - Amazon Alexa, Google Assistant, Siri, Josh.AI. It is also worth noting that the ECO mode is presented in each of the receivers. Both RX-S602 and AV7703 can be configured using the Setup assistant.
Only the AV7703 has a Dolby Atmos multichannel audio format support. A surround technology DTS:X is supported only by the AV7703.
The Marantz AV7703 is better receiver in this comparison. Check Marantz AV7703 price