What is better - Sony STR-ZA810ES vs Denon HEOS AVR?
The number of channels for receivers is different - 7.2 versus 5.1, respectively, for devices. In terms of power, there are differences, the STR-ZA810ES has such a ratio W/Ohm - 100/8, while the HEOS AVR has a power of 50/8, 65/6. The value of total harmonic distortion is also different, and for the STR-ZA810ES it is 0.09%, but for the HEOS AVR it is 0.05%. The Bi-amping function is implemented only in the Sony STR-ZA810ES. Both Sony STR-ZA810ES and Denon HEOS AVR can transmit an audio signal directly to the amplifier and bypasses any DSP processing.
Wireless Internet access via WIFI is possible on both units. Each of the receivers has a Bluetooth connector. Access to the Spotify service is on each of the competitors. 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-ZA810ES and the HEOS AVR. 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-ZA810ES has 6/2, and the HEOS AVR has 4/1. 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 each of the rivals can work with HDMI CEC. STR-ZA810ES and HEOS AVR support the standard HDCP 2.2. Unlike most receivers, our models do not have a built-in phono stage for connecting a vinyl player. For voice control in the STR-ZA810ES is used Google Assistant, but in the HEOS AVR is used Amazon Alexa, Google Assistant. 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.