Hey Bob, now you're not mixing the speakers up with their sailboats, are you? Sugarbrie, how could a place so close to where they call a milkshake a Frappe have come up with such a name??
Back on thread, while I have not heard them, the Wilson-Benesch speakers employing carbon fiber technology in their cabinets probably should be considered among the better functional cabinets, in part for their shapes, which are curved and without parallel walls in the ones I've seen, as well as the inert properties of the carbon fiber. Also, the Duntech/Dunlavy designs deserve some mention for their use of sealed boxes with the woofer sections, keeping them separate from the mid/tweeter chambers. And any manufacturer using outboard crossovers for their speakers (Alon, Avalon, among others) deserves mention too, for keeping those sensitive components separate from the internal vibrations in the speaker enclosure.