Pioneer VSX-531 vs Pioneer SC-LX901 – that is a question.
The number of channels for receivers is different - 5.1 versus 11.2, respectively, for devices. In terms of power, there are differences, the VSX-531 has such a ratio W/Ohm - 80/8 20Hz-20KHz, 140/6 1KHz, while the SC-LX901 has a power of 140/8 20Hz-20KHz, 200/6 1KHz. A common feature for devices is the same total harmonic distortion - 0.08%.
The manufacturer installed different DACs, the VSX-531 received the model 192 KHz/24-bit, but the SC-LX901 is equipped with ESS SABRE32 Ultra 192KHz/32-bit. The Bi-amping function is implemented only in the Pioneer SC-LX901. Both Pioneer VSX-531 and Pioneer SC-LX901 can transmit an audio signal directly to the amplifier and bypasses any DSP processing. Each of the receivers has a Bluetooth connector. The SC-LX901 has access to the Spotify service.
Support for the HDR function can only boast of each of the AV receivers. The quality of 4K 60p 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 VSX-531 and the SC-LX901. Video scaling is only possible with the SC-LX901. Operation with the Dolby Vision is only possible with the SC-LX901.
The number of HDMI inputs/outputs varies depending on the receiver, the VSX-531 has 4/1, and the SC-LX901 has 8/2. HDMI Audio Return Channel is implemented in both devices. HDMI eARC is not supported by the VSX-531 and the SC-LX901. When comparing receivers, it becomes clear that each of the rivals can work with HDMI CEC. VSX-531 and SC-LX901 support the standard HDCP 2.2. In the presence of a built-in phono stage for connecting a vinyl player only at Pioneer SC-LX901. Voice control of the basic functions of the receiver is not realized in both models. There is an ECO mode in VSX-531. The Pioneer SC-LX901 can be properly configured using the setup assistant.
A Dolby Atmos multichannel audio format is available only in the SC-LX901. Only in the SC-LX901 realized a DTS:X surround technology.
The Pioneer SC-LX901 is better receiver in this comparison. Check Pioneer SC-LX901 price