Having had an opportunity to test Pioneer VSX-532 vs Onkyo TX-SR373, I’d like to share my impression here to facilitate your choice of a new AV receiver.
AV receivers under review have the same number of channels. In terms of power, there are differences, the VSX-532 has such a ratio W/Ohm - 80/8 20Hz-20KHz, 150/6 1KHz, while the TX-SR373 has a power of 135/6 1KHz. The value of total harmonic distortion is also different, and for the VSX-532 it is 0.08%, but for the TX-SR373 it is 0.06%.
Competitive models use the same DAC. The Bi-amping function is implemented only in the Pioneer VSX-532. The model VSX-532 can transmit an audio signal directly to the amplifier and bypasses any DSP processing.
Wireless connection to the Internet via WIFI can not be performed on these receivers. Each of the receivers has a Bluetooth connector. Support for Apple Music Services not implemented. Spotify is not available for these receivers. The quality of 4K 60p 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 VSX-532 and the TX-SR373. None of the devices can increase the resolution of the incoming video signal. Review participants do not have the Dolby Vision feature.
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 VSX-532 and the TX-SR373. When comparing receivers, it becomes clear that each of the rivals can work with HDMI CEC. VSX-532 and TX-SR373 support the standard HDCP 2.2. Unlike most receivers, our models do not have a built-in phono stage for connecting a vinyl player. Voice control of the basic functions of the receiver is not realized in both models. There is an ECO mode in VSX-532. None of these units can be properly configured using the setup assistant.
Generally no support for a Dolby Atmos multichannel audio format. A DTS:X surround technology is not supported by devices from our comparison.
The Pioneer VSX-532 is better receiver in this comparison. Check Pioneer VSX-532 price