"...so dwarfed the sound of my previous MTMs that I built the arrays to have something that could keep up with the SPL of the sub."

I'm already fixed with a pair of subs that match the efficiency of the arrays too. This is the current setup (notice the tweeters on the inside) and after a coupla months of trial and error tweaking and modifying the array, it sounds rediculously good I started out open baffle but ended up closing them (not exactly sealed though) with fiberglass and 1 inch thick insulation foam on the backs to attenuate the back wave - just not enough room in here to let them operate as OB's.

The problem I have is the gap between the subs and the NSB's (or any other mid) that needs to cross higher than 100Hz. I'd like to play with some 3 inch mids, but I need something between them and the subs.

"If you do array you won't need tens to do it, investigate 8s, and look for closeouts."

Yeah, I intend to do that. I'm probably going to find some cheap Goldwoods or some such to check it all out. Thanks again for your input.

Allan