Onkyo TX-NR575 vs Onkyo TX-SR494 – that is a question.
AV receivers under review have the same number of channels. In terms of power, the receivers have the same performance - 135/6. A common feature for devices is the same total harmonic distortion - 0.08%.
The manufacturer installed different DACs, the TX-NR575 received the model 384 KHz/32-bit, but the TX-SR494 is equipped with AKM 384 KHz/32-bit. Each of the compared opponents supports Bi-amping. Both Onkyo TX-NR575 and Onkyo TX-SR494 can transmit an audio signal directly to the amplifier and bypasses any DSP processing. Each of the receivers has a Bluetooth connector. The TX-NR575 has access to the Spotify service.
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 TX-NR575 and the TX-SR494. None of the devices can increase the resolution of the incoming video signal. Operation with the Dolby Vision is only possible with the TX-NR575.
The number of HDMI inputs/outputs is the same - 4/1. HDMI Audio Return Channel is implemented in both devices. HDMI eARC is not supported by the TX-NR575 and the TX-SR494. When comparing receivers, it becomes clear that each of the rivals can work with HDMI CEC. TX-NR575 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 Onkyo TX-NR575.
Ability to create 2 Multi zones inherent in both AV receivers. Voice control of the basic functions of the receiver is not realized in both models. There is an ECO mode in neither AV receiver. The Onkyo TX-NR575 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.