The Marantz SR5012 vs Onkyo TX-RZ830 comparison will be extremely helpful for people who want to get a great, powerful receiver with many functions.
The number of channels for receivers is different - 7.2 versus 9.2, respectively, for devices. In terms of power, there are differences, the SR5012 has such a ratio W/Ohm - 100/8, while the TX-RZ830 has a power of 180/6. A common feature for devices is the same total harmonic distortion - 0.08%.
The manufacturer installed different DACs, the SR5012 received the model 192 KHz/24-bit, but the TX-RZ830 is equipped with AK4458 384 KHz/32-bit. Each of the compared opponents supports Bi-amping. Both Marantz SR5012 and Onkyo TX-RZ830 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 SR5012 works with Deezer, TIDAL, Pandora, Napster, SiriusXM, TuneIn Radio, iHeart Radio, Sound Cloud, but the Onkyo TX-RZ830 works with Deezer, TIDAL, TuneIn Radio. 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 SR5012 and the TX-RZ830. Video scaling is only possible with the SR5012. Each of the participants of the comparison has a Dolby Vision.
The number of HDMI inputs/outputs varies depending on the receiver, the SR5012 has 8/2, and the TX-RZ830 has 7/2. HDMI Audio Return Channel is implemented in both devices. HDMI eARC is not supported by the SR5012 and the TX-RZ830. When comparing receivers, it becomes clear that each of the rivals can work with HDMI CEC. SR5012 and TX-RZ830 support the standard HDCP 2.2. In the presence of a built-in phono stage for connecting a vinyl player only at Onkyo TX-RZ830.
Unlike the SR5012 where 2 Multi zones is provided, the TX-RZ830 works with 3 Multi zones. For voice control in the SR5012 is used Amazon Alexa, Google Assistant, Siri, Josh.AI, but in the TX-RZ830 is used Google Assistant. There is an ECO mode in SR5012. The Marantz SR5012 and the Onkyo TX-RZ830 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.