Wayne,You recently sent plans for the Three Pi Professional speakers (the ones using the JBL 2206) [thanks].
On the info section of the Web site the document "Independent Thiele Analysis of π Speakers with Response Charts" here http://www.pispeakers.com/PiGraph.htm shows an optimum PiAlign box of 0.73 cubic feet for the 2206 driver.
Unless my math is off, the Three Pi Professional plans show a much larger box. Is there a version of the plans with an internal subdivision that loads the 2206 to PiAlign specifications?
thanks,
Brian