Mr Wizard indeed!! Now the above statement is surprising. With all the Research and development Bose claims it put into the Pas, I would have thought they came up with some magical formula for positioning the speakers. I guess they just positioned the tuning port holes on the side and back so that the reflected sound from behind the speakers eminates out the tuning ports.

Gary, maybe that's what you need to do to your enclosure to enhance the mid-range?

Al