The JBL 2226 works very well in boxes from 2.5ft3 to 5ft3 so seven π motor chamber volumes in this range work very well. Tune it between 30Hz and 40Hz and it will sound great.Is there any chance you can come to the Midwest Audiofest in Ohio, April 11-13? I'm asking because there will be some seven π cornerhorns there, and I think you might enjoy hearing them. The bass is very powerful in the stock cabinet configuration and this would give you a chance to hear them.