Seems like speakers with active crossovers are becoming more popular these days (of course, it may only seem that way to me). Can they be made on the cheap? I dunno.
I really like the look and design concept of the Emerald Physic CS2's. I'd love to build something similar.
Let's start by posting links to DIY speakers that are designed for active crossovers. This guy does 'em: http://www.linkwitzlab.com/orion_construction.htm
Anyone got any other good links?