These models belong to the “D” class of amplifiers. It means that the devices are super useful. However, this Marantz SR7012 vs. Yamaha RX-A3070 comparison should help you. I have checked forums and user reviews to help you find the best option for you.
A 9.2-channel AV receiver with 200 watts per channel is sturdy enough for larger rooms to fill them with the glorified sound of Marantz. Decoding Dolby Atmos, DTS: X (up to 7.1.4 channels with an external 2-channel power amplifier) ??and Auro-3D is a complete immersion in 3D surround sound with sound effects from the top. High-quality 192KHz/32bit DACs in all channels - the highest resolution for music and movies.
Audyssey MultEQ XT32, LFC, Sub EQ HT, Dynamic Volume and Dynamic EQ - ideal auto-calibration of speakers for the acoustic conditions of a particular room.
Built-in Wi-Fi with support for two bands 2.4GHz / 5GHz, Bluetooth - improved stability of communication, especially in congested Wi-Fi networks. Built-in wireless HERO multi-room system technology with HEOS application - simple multi-room audio with other HEOS products, convenient control.
AirPlay, Bluetooth, Internet Radio, Spotify Connect, TIDAL, Deezer and much more - access to virtually unlimited online music resources. Support DSD (2.8 / 5.6MHz), FLAC, ALAC and WAV - High Definition streaming for Hi-Fi enthusiasts.
A first-class AV-receiver AV receiver with support for Dolby Atmos and DTS-X playback, CINEMA DSP HD3 technology and many outstanding features, including the ability to expand to 11.2 channels for unparalleled surround sound while listening and viewing, high-precision 64- the YPAO bit calibration system, the exceptionally high-quality ESS DAC, and the processing of audio signals in zones 2 and 3.
The receiver has great sound quality. Without changing any of my speakers I get a deeper and richer bass and stronger highs. As with any receiver in this class, there is a lengthy setup. When watching my first high-quality Blu-ray the difference became immediately clear.
I find both models great, but there are still some differences. Yamaha is more powerful and that is the main advantage. Both devices support almost all popular modern audio formats and have decoders that can play any video. Marantz does not have many inputs, but that is not an issue as long as you are not going to use different devices.
Yamaha has many sound effects and other functions. Therefore, if you need a modern device with many functions, then you should consider buying Yamaha RX-A3070, if you do not need all those functions and you need a good reliable device, then Marantz SR7012 is right for you. Moreover, the price difference between these devices is not that big.
Marantz SR7012 overview
The best receiver is Yamaha RX-A3070BL. Check Yamaha RX-A3070BL price on Amazon