The Sony STR DH550 vs Onkyo TX-SR343 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 - 5.2 versus 5.1, respectively, for devices. In terms of power, there are differences, the STR DH550 has such a ratio W/Ohm - 90/6, while the TX-SR343 has a power of 100/6. The value of total harmonic distortion is also different, and for the STR DH550 it is 0.09%, but for the TX-SR343 it is 0.08%.
The manufacturer installed different DACs, the STR DH550 received the model 192 KHz/24-bit, but the TX-SR343 is equipped with TI Burr-Brown 192 KHz/24-bit. None of the compared opponents supports Bi-amping. In the considered devices there is no function transmitting 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. There is a Bluetooth protocol at the TX-SR343. Support for Apple Music Services not implemented. Spotify is not available for these receivers.
Oddly enough, the support for the HDR function is not implemented in these units. HDMI signal transmission in standby mode can provide only the TX-SR343. 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 STR DH550 and the TX-SR343. When comparing receivers, it becomes clear that each of the rivals can work with HDMI CEC. STR DH550 and TX-SR343 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 neither AV receiver. 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.