Denon AVR-X8500H vs Onkyo TX-SR494 – that is a question.
The number of channels for receivers is different - 13.2 versus 7.2, respectively, for devices. In terms of power, there are differences, the AVR-X8500H has such a ratio W/Ohm - 150/8, 250/6, while the TX-SR494 has a power of 135/6. The value of total harmonic distortion is also different, and for the AVR-X8500H it is 0.05%, but for the TX-SR494 it is 0.08%.
The manufacturer installed different DACs, the AVR-X8500H received the model AK4490EQ 768 KHz/32-bit, but the TX-SR494 is equipped with AKM 384 KHz/32-bit. Each of the compared opponents supports Bi-amping. Both Denon AVR-X8500H and Onkyo TX-SR494 can transmit an audio signal directly to the amplifier and bypasses any DSP processing.
Wireless Internet connection via WIFI is only possible with AVR-X8500H. Each of the receivers has a Bluetooth connector. The AVR-X8500H has access to the Spotify service. 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-X8500H and the TX-SR494. Video scaling is only possible with the AVR-X8500H. Operation with the Dolby Vision is only possible with the AVR-X8500H.
The number of HDMI inputs/outputs varies depending on the receiver, the AVR-X8500H has 8/3, and the TX-SR494 has 4/1. HDMI Audio Return Channel is implemented in both devices. HDMI eARC is only supported by the AVR-X8500H. When comparing receivers, it becomes clear that each of the rivals can work with HDMI CEC. AVR-X8500H and TX-SR494 support the standard HDCP 2.2. In the presence of a built-in phono stage for connecting a vinyl player only at Denon AVR-X8500H.
Unlike the AVR-X8500H where 3 Multi zones is provided, the TX-SR494 works with 2 Multi zones. There is an ECO mode in AVR-X8500H. The Denon AVR-X8500H and the Onkyo TX-SR494 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.