It makes sense comparing Pioneer SC-LX501 vs Denon AVR-X2300W because they both are able to give some premium features.
Considered AV receivers have the same number of channels 7.2. Regarding power, then SC-LX501 has such a W/Ohm ratio - 120/8, 180/6 when AVR-X2300W has a power of 95/8, 125/6. The THD is the same and is 0.08%.
Characteristics of digital to analog converter (DAC) are different, AK4458 384 KHz/32-bit for SC-LX501 and Burr-Brown 192 KHz/24-bit for the AVR-X2300W. Both the SC-LX501 and the AVR-X2300W support Bi-amping. Each of the AV receivers can transmit an audio signal directly to the amplifier and bypasses any DSP processing. Rivals from our review have Bluetooth support. The Apple Music service is implemented on considered devices: AirPlay. Spotify can be used on each receiver. The SC-LX501 can work with the audio stream from Deezer, TIDAL, Pandora, TuneIn Radio, and the AVR-X2300W can receive a content from Pandora, SiriusXM.
These units support HDR technology. 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. Dolby Vision technology found support only on the SC-LX501.
The Pioneer SC-LX501 has 7/2 HDMI inputs/outputs versus 8/2 HDMI connectors of the Denon AVR-X2300W. The HDMI Audio Return Channel (ARC) feature supports both devices. Unfortunately, HDMI eARC is not available on monitored devices. 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 SC-LX501 has a built-in phono stage for connecting a vinyl player.
Each of the AV receivers from our review supports 2 Multi-room zones. A voice control is not available. An ECO mode is only available for the AVR-X2300W. Both SC-LX501 and AVR-X2300W 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.