Okay - Spent the weekend thinkin' on the "El Cheapo Speaker Project." Going to start with a pair of the Goldwood 12" 312/8s from the Parts Express sale flier ($14x2) clamshelled into a 1.6 cubic foot sealed box, which will give me 4 ohms, and according to the nice guy at the Parts Express tech support, an f3 of 33ish. It'll be driven by a 100 watt plate amp. The upper end will be essentially a BR-1 in a separate ported box, and will use the crossover on the plate amp to separate the low signal for the woofs... What do y'all think? As an aside, started in messing with the math - Sheesh - these things have a high Q... And an EDM (or whatever that was) of around 10ish... Am I screwing the pooch on this one?