Sony STR-DH770 vs Sony STR-ZA810ES – that is a question.
AV receivers under review have the same number of channels. In terms of power, there are differences, the STR-DH770 has such a ratio W/Ohm - 105/6, while the STR-ZA810ES has a power of 100/8. A common feature for devices is the same total harmonic distortion - 0.09%.
The manufacturer installed different DACs, the STR-DH770 received the model 192 KHz/24-bit, but the STR-ZA810ES is equipped with 384 KHz/32-bit. Each of the compared opponents supports Bi-amping. Both Sony STR-DH770 and Sony STR-ZA810ES can transmit an audio signal directly to the amplifier and bypasses any DSP processing.
Wireless Internet connection via WIFI is only possible with STR-ZA810ES. Each of the receivers has a Bluetooth connector. The STR-ZA810ES 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 STR-DH770 and the STR-ZA810ES. Video scaling is only possible with the STR-ZA810ES. Operation with the Dolby Vision is only possible with the STR-ZA810ES.
The number of HDMI inputs/outputs varies depending on the receiver, the STR-DH770 has 4/1, and the STR-ZA810ES has 6/2. HDMI Audio Return Channel is implemented in both devices. HDMI eARC is only supported by the STR-ZA810ES. When comparing receivers, it becomes clear that only the Sony STR-ZA810ES has HDMI CEC. STR-DH770 and STR-ZA810ES support the standard HDCP 2.2. Unlike most receivers, our models do not have a built-in phono stage for connecting a vinyl player.
Ability to create 2 Multi zones inherent in both AV receivers. There is an ECO mode in neither AV receiver. The Sony STR-ZA810ES can be properly configured using the setup assistant.
A Dolby Atmos multichannel audio format is available only in the STR-ZA810ES. Only in the STR-ZA810ES realized a DTS:X surround technology.