Marantz AV7703 vs Onkyo TX-8270 – that is a question.
The number of channels for receivers is different - 11.2 versus 2.0, respectively, for devices. A common feature for devices is the same total harmonic distortion - 0.08%.
The manufacturer installed different DACs, the AV7703 received the model 192 KHz/32-bit, but the TX-8270 is equipped with AK4438 384 KHz/32-bit. The Bi-amping function is implemented only in the Marantz AV7703. Both Marantz AV7703 and Onkyo TX-8270 can transmit an audio signal directly to the amplifier and bypasses any DSP processing.
These units have the same Wi-Fi modules. Each of the receivers has a Bluetooth connector. The contenders have differences in the supported services from Apple - AirPlay, AirPlay 2 versus AirPlay respectively. Access to the Spotify service is on each of the competitors. The number of available streaming services varies for receivers, the Marantz AV7703 works with Deezer, TIDAL, Pandora, Napster, iHeart Radio, SiriusXM, Sound Cloud, but the Onkyo TX-8270 works with Deezer, TIDAL, TuneIn Radio.
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. HDMI signal transmission in standby mode can provide only the AV7703. Video scaling is only possible with the AV7703. Each of the participants of the comparison has a Dolby Vision.
The number of HDMI inputs/outputs varies depending on the receiver, the AV7703 has 8/3, and the TX-8270 has 4/1. HDMI Audio Return Channel is implemented in both devices. HDMI eARC is not supported by the AV7703 and the TX-8270. When comparing receivers, it becomes clear that each of the rivals can work with HDMI CEC. AV7703 and TX-8270 support the standard HDCP 2.2. Like most receivers, our models have a built-in phono stage for connecting a vinyl player.
Unlike the AV7703 where 3 Multi zones is provided, the TX-8270 works with 2 Multi zones. There is an ECO mode in AV7703. The Marantz AV7703 and the Onkyo TX-8270 can be properly configured using the setup assistant.
A Dolby Atmos multichannel audio format is available only in the AV7703. Only in the AV7703 realized a DTS:X surround technology.
The Marantz AV7703 is better receiver in this comparison. Check Marantz AV7703 price