Thanks a lot!& I have also one suggestion for this design: place the tweeter
on the front baffle using golden ratios: the baffle width is 16",
so place the tweeter at 10" from left, (6" from right - rather than 8"/8") and 4" from the top. (more precision can be calculated using exact value of Phi=1.618034). Important think is to mirror left/right speaker.
This is an easy tweak, on my 2Pi towers the improvement of stereo
image was impressionant!
v.