High Quality Content by WIKIPEDIA articles! Yamaha Pro Audio, Inc. is a company that offers a complete line of professional audio products for the live sound and sound reinforcement markets. It has a long history of introducing significant products for the professional audio market such as the PM-1000 modular mixing console, the REV1 and SPX90 digital signal processors, and the 01, 02R, PM1D and PM5D digital mixing consoles.