The present review is aimed to compare two AV receivers - Sony STR-DH590 vs Denon AVR-S640H that are meant to satisfy the needs of cinema and music lovers.
Considered AV receivers have the same number of channels 5.2. Regarding power, then STR-DH590 has such a W/Ohm ratio - 145/6 when AVR-S640H has a power of 75/8, 100/6. The THD is 0.09% for the STR-DH590 but 0.08% for the AVR-S640H.
Competitors' digital to analog converter (DAC) is identical to 192 KHz/32-bit. None of the models support Bi-amping. Each of the AV receivers can transmit an audio signal directly to the amplifier and bypasses any DSP processing.
Only the Denon AVR-S640H can connect to the Internet via WI-FI. Rivals from our review have Bluetooth support. Only the AVR-S640H supports Spotify. Compared AV receivers retain the quality of 4K/60Hz signal when transmitting from a source to a TV or projector. HDMI signal transmission in standby mode is implemented in each of the devices. Both competitors are not able to scale the HDMI signal. The HDR standard - Dolby Vision is supported by these receivers.
The Sony STR-DH590 has 4/1 HDMI inputs/outputs versus 5/1 HDMI connectors of the Denon AVR-S640H. The HDMI Audio Return Channel (ARC) feature supports both devices. Unfortunately, HDMI eARC is not available on monitored devices. The Consumer Electronics Control (CEC) feature is present in most modern AV receivers and the models in our comparison are no exception. Both models support the standard HDCP 2.2. The AVR-S640H has a built-in phono stage for connecting a vinyl player. An ECO mode is only available for the AVR-S640H. The setup assistant will help you configure Denon AVR-S640H.
None of the rivals equipped with Dolby Atmos multichannel audio decoder. The receivers do not support the surround sound technology DTS:X.