Marantz SR7012 vs Sony STR-ZA3100ES – that is a question.
The number of channels for receivers is different - 11.2 versus 7.2, respectively, for devices. In terms of power, there are differences, the SR7012 has such a ratio W/Ohm - 125/8, 165/6, while the STR-ZA3100ES has a power of 70/8, 90/6. The value of total harmonic distortion is also different, and for the SR7012 it is 0.05%, but for the STR-ZA3100ES it is 0.09%. Each of the compared opponents supports Bi-amping. Both Marantz SR7012 and Sony STR-ZA3100ES can transmit an audio signal directly to the amplifier and bypasses any DSP processing. Each of the receivers has a Bluetooth connector. The SR7012 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 SR7012 and the STR-ZA3100ES. Video scaling is only possible with the SR7012. Each of the participants of the comparison has a Dolby Vision.
The number of HDMI inputs/outputs varies depending on the receiver, the SR7012 has 8/3, and the STR-ZA3100ES has 6/2. HDMI Audio Return Channel is implemented in both devices. HDMI eARC is supported by the SR7012 and the STR-ZA3100ES. When comparing receivers, it becomes clear that each of the rivals can work with HDMI CEC. SR7012 and STR-ZA3100ES support the standard HDCP 2.2. In the presence of a built-in phono stage for connecting a vinyl player only at Marantz SR7012.
Unlike the SR7012 where 3 Multi zones is provided, the STR-ZA3100ES works with 2 Multi zones. There is an ECO mode in SR7012. The Marantz SR7012 and the Sony STR-ZA3100ES 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.