Sony STR-ZA2100ES vs Denon AVRX6300H comparison definitely makes sense.
A significant difference between the receivers in the number of channels, Sony STR-ZA2100ES has 7.2 versus 11.2 for Denon AVRX6300H. Regarding power, then STR-ZA2100ES has such a W/Ohm ratio - 75/8, 95/6 when AVRX6300H has a power of 140/8, 175/6. The THD is 0.09% for the STR-ZA2100ES but 0.05% for the AVRX6300H. Both the STR-ZA2100ES and the AVRX6300H 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 AVRX6300H can connect to the Internet via WI-FI. Rivals from our review have Bluetooth support. Only the AVRX6300H 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 rivals can scale the resolution of the incoming HDMI signal. The HDR standard - Dolby Vision is supported by these receivers.
The Sony STR-ZA2100ES has 6/2 HDMI inputs/outputs versus 8/3 HDMI connectors of the Denon AVRX6300H. The HDMI Audio Return Channel (ARC) feature supports both devices. The HDMI eARC is available only on the STR-ZA2100ES. 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 AVRX6300H has a built-in phono stage for connecting a vinyl player.
The STR-ZA2100ES supports 2 Multi-room zones, versus 3 for the AVRX6300H. An ECO mode is only available for the AVRX6300H. Both STR-ZA2100ES and AVRX6300H can be configured using the Setup assistant.
Both devices have support for Dolby Atmos multichannel audio format. The surround sound technology DTS:X is supported by devices under review.