You could also contact Bob Brines. He maybe able to steer you in the right direction. I'm a fan of TLs..they have a certain type of bass that I haven't experienced from other designs. Here's Bob's site Brines Acoustics.
DIY speaker enclosure, maybe TL?
I'm planning to make a pair of speaker enclosures for Accuton drivers, and people have told me I should go for a Transmission Line type. I've tried to read on the Internet about TL's, and realize that while the audiophile community owes a huge debt to Martin J. King and George Augsburger, their stuff belongs to an engineering grad school curriculum, with me being stuck somewhere around the 6th grade. I've ordered a couple of books, Vance Dickason's Cookbook for one, but before they arrive, can anyone guide me toward a practical design? I can do the carpentry but the details of a design still seem a distant goal. Any help would be much appreciated!