Denon AVR-X540BT vs Sony STR-ZA810ES – that is a question.
The number of channels for receivers is different - 5.2 versus 7.2, respectively, for devices. In terms of power, there are differences, the AVR-X540BT has such a ratio W/Ohm - 70/8, 90/6, while the STR-ZA810ES has a power of 100/8. The value of total harmonic distortion is also different, and for the AVR-X540BT it is 0.08%, but for the STR-ZA810ES it is 0.09%.
The manufacturer installed different DACs, the AVR-X540BT received the model 192 KHz/24-bit, but the STR-ZA810ES is equipped with 384 KHz/32-bit. The Bi-amping function is implemented only in the Sony STR-ZA810ES. Both Denon AVR-X540BT 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. 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 AVR-X540BT and the STR-ZA810ES. Video scaling is only possible with the STR-ZA810ES. Each of the participants of the comparison has a Dolby Vision.
The number of HDMI inputs/outputs varies depending on the receiver, the AVR-X540BT has 5/1, 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 each of the rivals can work with HDMI CEC. AVR-X540BT 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. There is an ECO mode in AVR-X540BT. The Denon AVR-X540BT and 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.