We haven't had a pioneer receiver in for a while, but next time I get my hands on one, I'll pay close attention to the MCACC use and results. That said, the manual should offer a step by step on how to use the auto setup. For instance, with the VSX-1130-K, page 50 of the manual details using a web browser/app to complete basic setup. Page 58 describes using the included microphone to setup MCACC, and page 73 describes how to switch between the preset MCACC memory positions. Enjoy your system.