Quote Originally Posted by alancohen View Post
I think it needed some messing with, Ron...at least for my taste. The mids are so out in front, the lower frequencies lagged. I added the wood on the bottom of the horn and then put a few pieces of closed-cell foam on either side of the horn leaving about 14sqin per speaker of port. It seems to have helped the bottom end catch up quite a bit. Bass drums are punchier and bass guitar licks are bouncier. The foam might be narrowing the horn dispersion, but it seems to sound great.
You are the listener, so give it some time with various music and see. As Geek mentioned, it is nice to see where it was stock by measuring as he stated, then see how it measures after the tweak. It's a pretty simple measurement. Would be interesting to know where heath had them tuned.
Might also be interesting to mess with differing amounts of stuffing.

Ron