The Onkyo TX-NR555 vs Denon AVR-X4700H 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 TX-NR555 has such a ratio W/Ohm - 130/6, while the AVR-X4700H has a power of 125/8, 165/6. The value of total harmonic distortion is also different, and for the TX-NR555 it is 0.08%, but for the AVR-X4700H it is 0.05%. Each of the compared opponents supports Bi-amping. Both Onkyo TX-NR555 and Denon AVR-X4700H 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 versus AirPlay, AirPlay 2 respectively. Access to the Spotify service is on each of the competitors. The number of available streaming services varies for receivers, the Onkyo TX-NR555 works with Deezer, TIDAL, Pandora, but the Denon AVR-X4700H works with Deezer, TIDAL, Pandora, SiriusXM, Qobuz, TuneIn Radio. Signaling over HDMI in standby mode can provide the TX-NR555 and the AVR-X4700H. Video scaling is only possible with the AVR-X4700H. Operation with the Dolby Vision is only possible with the AVR-X4700H.
The number of HDMI inputs/outputs varies depending on the receiver, the TX-NR555 has 6/1, and the AVR-X4700H has 8/3. HDMI Audio Return Channel is implemented in both devices. HDMI eARC is only supported by the AVR-X4700H. When comparing receivers, it becomes clear that each of the rivals can work with HDMI CEC. The TX-NR555 has support for the standard HDCP 2.2, compared to the AVR-X4700H, which supports the standard HDCP 2.3. Like most receivers, our models have a built-in phono stage for connecting a vinyl player.
Unlike the TX-NR555 where 2 Multi zones is provided, the AVR-X4700H works with 3 Multi zones. There is an ECO mode in either AV receiver. The Denon AVR-X4700H 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.