Hey there everyone. I wanted to try a DIY experiment with a combo I've got. The box is roughly 1 cubic foot and I wanted to replace the original speaker with a 12". It can also be a 10", if it can take a bit of power. I can port it if necessary. I would like to x-over to something that will get up to around 7K to 10K, unless the speaker can do that. I am looking for a speaker which will allow for a useable low end of around 50hz, although the lower the better. This doesn't have to be a very loud box, but it would be cool if it could be loud enough for a medium volume rehearsal or a "standards" type gig. The box dimensions are roughly 17"H x 17"W x 9"D. I've seen a couple of DIY boxes with a single 10" x'd over to a mid/high unit that could handle approx 200 watts. Those boxes used hifi woofers, which I'd be inclined to try, but I can't locate anything that approximates the drivers used in those older designs. One was by a fella named Len Moskowitz, I think. Thanks for any help.