It makes sense comparing Yamaha AVENTAGE RX-A3080 vs Marantz SR7015 because they both are able to give some premium features.
Considered AV receivers have the same number of channels 9.2. Regarding power, then AVENTAGE RX-A3080 has such a W/Ohm ratio - 150/8, 230/4 when SR7015 has a power of 125/8, 165/6. The THD is 0.06% for the AVENTAGE RX-A3080 but 0.05% for the SR7015. Both the AVENTAGE RX-A3080 and the SR7015 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 AVENTAGE RX-A3080 can work with the audio stream from Deezer, TIDAL, Pandora, Sirius XM, Napster, Qobuz, and the SR7015 can receive a content from Deezer, TIDAL, Pandora, SiriusXM, Napster, SoundCloud.
Both AV receivers support HDR10 technology (High dynamic range). 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 Yamaha AVENTAGE RX-A3080 has 7/3 HDMI inputs/outputs versus 8/3 HDMI connectors of the Marantz SR7015. The HDMI Audio Return Channel (ARC) feature supports both devices. HDMI eARC is available in each model. 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 2.3. These compared receivers have a built-in phono stage for connecting a vinyl player.
Each of the AV receivers from our review supports 3 Multi-room zones. The AVENTAGE RX-A3080 supports voice control via Amazon Alexa, Google Assistant, and the SR7015 - Amazon Alexa, Google Assistant, Siri, Josh.AI. It is also worth noting that the ECO mode is presented in each of the receivers. Both AVENTAGE RX-A3080 and SR7015 can be configured using the Setup assistant.
Both devices have support for Dolby Atmos multichannel audio format. The surround sound technology DTS:X is supported by devices under review.