Pioneer VSX-LX303 vs Sony STRZA1100ES comparison definitely makes sense.
A significant difference between the receivers in the number of channels, Pioneer VSX-LX303 has 9.2 versus 7.2 for Sony STRZA1100ES. Regarding power, then VSX-LX303 has such a W/Ohm ratio - 100/8, 200/6 when STRZA1100ES has a power of 70/8, 90/6. The THD is 0.08% for the VSX-LX303 but 0.09% for the STRZA1100ES. Both the VSX-LX303 and the STRZA1100ES support Bi-amping. Each of the AV receivers can transmit an audio signal directly to the amplifier and bypasses any DSP processing. Only the VSX-LX303 has Bluetooth support. Only the VSX-LX303 supports Spotify.
Both AV receivers support HDR10 technology (High dynamic range). 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 Pioneer VSX-LX303 has 7/2 HDMI inputs/outputs versus 5/2 HDMI connectors of the Sony STRZA1100ES. The HDMI Audio Return Channel (ARC) feature supports both devices. The HDMI eARC is available only on the STRZA1100ES. 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 VSX-LX303 has a built-in phono stage for connecting a vinyl player.
The VSX-LX303 supports 3 Multi-room zones, versus 2 for the STRZA1100ES. An ECO mode is not present in each of the AV receivers. Both VSX-LX303 and STRZA1100ES 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.