The Pioneer SC-LX901 vs Pioneer VSX-LX503 comparison proves that these receivers have many common features.
A significant difference between the receivers in the number of channels, Pioneer SC-LX901 has 11.2 versus 9.2 for Pioneer VSX-LX503. Regarding power, then SC-LX901 has such a W/Ohm ratio - 140/8 20Hz-20KHz, 200/6 1KHz when VSX-LX503 has a power of 120/8 20Hz-20KHz, 230/6 1KHz. The THD is the same and is 0.08%.
Characteristics of digital to analog converter (DAC) are different, ESS SABRE32 Ultra 192KHz/32-bit for SC-LX901 and AK4458 384 KHz/32-bit for the VSX-LX503. Both the SC-LX901 and the VSX-LX503 support Bi-amping. Each of the AV receivers can transmit an audio signal directly to the amplifier and bypasses any DSP processing.
WI-FI modules have the same characteristics: 2.4/5GHz. Rivals from our review have Bluetooth support. The Apple Music service is implemented on considered devices: AirPlay. Spotify can be used on each receiver. Deezer, TIDAL, Pandora, TuneIn Radio - all of these streaming services have found application in each of the models. Compared AV receivers retain the quality of 4K 60p 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 SC-LX901 has 8/2 HDMI inputs/outputs versus 7/2 HDMI connectors of the Pioneer VSX-LX503. 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. These compared receivers have a built-in phono stage for connecting a vinyl player.
Each of the AV receivers from our review supports 3 Multi-room zones. An ECO mode is not present in each of the AV receivers. Both SC-LX901 and VSX-LX503 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.
The Pioneer SC-LX901 is better receiver in this comparison. Check Pioneer SC-LX901 price