What is better - Onkyo TX-RZ830 vs Denon AVR-S720W?
The number of channels for receivers is different - 9.2 versus 7.2, respectively, for devices. In terms of power, there are differences, the TX-RZ830 has such a ratio W/Ohm - 180/6, while the AVR-S720W has a power of 75/8, 110/6. A common feature for devices is the same total harmonic distortion - 0.08%.
The manufacturer installed different DACs, the TX-RZ830 received the model AK4458 384 KHz/32-bit, but the AVR-S720W is equipped with 192 KHz/32-bit. The Bi-amping function is implemented only in the Onkyo TX-RZ830. Both Onkyo TX-RZ830 and Denon AVR-S720W can transmit an audio signal directly to the amplifier and bypasses any DSP processing. Each of the receivers has a Bluetooth connector. Both devices can work with such Apple Music services: AirPlay. Access to the Spotify service is on each of the competitors. The number of available streaming services varies for receivers, the Onkyo TX-RZ830 works with Deezer, TIDAL, TuneIn Radio, but the Denon AVR-S720W works with Pandora, SiriusXM. 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 TX-RZ830 and the AVR-S720W. None of the devices can increase the resolution of the incoming video signal. Operation with the Dolby Vision is only possible with the TX-RZ830.
The number of HDMI inputs/outputs varies depending on the receiver, the TX-RZ830 has 7/2, and the AVR-S720W has 6/1. HDMI Audio Return Channel is implemented in both devices. HDMI eARC is not supported by the TX-RZ830 and the AVR-S720W. When comparing receivers, it becomes clear that each of the rivals can work with HDMI CEC. TX-RZ830 and AVR-S720W 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 TX-RZ830 where 3 Multi zones is provided, the AVR-S720W works with 2 Multi zones. There is an ECO mode in AVR-S720W. The Onkyo TX-RZ830 and the Denon AVR-S720W 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.