The Denon AVR-S940H 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 AVR-S940H has such a ratio W/Ohm - 90/8, 125/6, 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 AVR-S940H received the model 192 KHz/32-bit, but the TX-RZ830 is equipped with AK4458 384 KHz/32-bit. The Bi-amping function is implemented only in the Onkyo TX-RZ830. Both Denon AVR-S940H and Onkyo TX-RZ830 can transmit an audio signal directly to the amplifier and bypasses any DSP processing. 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 Denon AVR-S940H 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 HDR10 function is present in each of the rivals. 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 AVR-S940H and the TX-RZ830. Video scaling is only possible with the AVR-S940H. Each of the participants of the comparison has a Dolby Vision.
The number of HDMI inputs/outputs varies depending on the receiver, the AVR-S940H 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 AVR-S940H and the TX-RZ830. When comparing receivers, it becomes clear that each of the rivals can work with HDMI CEC. AVR-S940H and TX-RZ830 support the standard HDCP 2.2. Like most receivers, our models have a built-in phono stage for connecting a vinyl player.
Unlike the AVR-S940H where 2 Multi zones is provided, the TX-RZ830 works with 3 Multi zones. For voice control in the AVR-S940H is used Amazon Alexa, Google Assistant, Siri, Josh.AI, but in the TX-RZ830 is used Google Assistant. There is an ECO mode in AVR-S940H. The Denon AVR-S940H 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.