I'm thinking about doing this, if I convince my teacher who is quite liberal, for a school project. Here is what I want to do, and this will be my first --A "space conservative" sub: not necessarily Sunfire small, but small enough to be taken to college. --Goes down to 20hz (or lower) accurately --NOT BOOMY --Probably a 12" Driver I have a Velodyne CHT-12 right now. I could sell it, or combine it with this DIY. Is this going to be beyond my scope? How much is this going to cost? Can you suggest some amps and drivers?