Thanks to everyone--I'll check out the recommended websites. I won't know which Accuton drivers until I have a slightly better idea of what's possible. I'd like to avoid a subwoofer, which suggests to me a 7" mid-bass unit rather than a 5" or 6" one--unless I use two mid-basses along with, say, their 1" tweeter. John Risch's writings have been the most useful to me so far, but they're marked "obsolete--historical interest only" in the website they appear in. Discouraging!
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!