Posted by Wayne Parham on July 10, 2002 at 21:46:10

In Reply to: Wayne, what is the Pro4 port spec? and... posted by Till E. on July 10, 2002 at 20:20:30:

Got your order - Thank you very much!

The port on a Professional Series four π speaker is 3.5" x 6" x 10" long. Those are inside dimensions.

I'll send you the plans.