Bob Heil Interview Series: #8: SUNN Amplifiers, the Mavis Mixer, and "The Who: Quadrophenia"

Part Eight of our ongoing series of interviews with Dr. Bob Heil, live sound pioneer, audio guru, and top-tier Amateur Radio manufacturer.
In this week's installment, Bob talks about his early involvement with SUNN Amplifiers of Beaverton Oregon (the foundation for today's global leader in audio conferencing, Biamp Systems) - and also the creation and deployment of the "Mavis Mixer" that was used for The Who in support of their landmark quadraphonic sound album, tour, and movie, called Quadrophenia. Bob made things happen then on the cutting edge of rock and roll audio!!
Next week's installment: Speaker design legend Paul Klipsch, and "no Bob Heil interview is complete without a mention of The Who drummer, Keith Moon"
Dave
W7UUU