Just wondering, cause I was flipping through an old HT mag and came across an ad for the CAT Sequoia. That is one BIG speaker. The only picture I could find online is HERE. But I think they would make a pretty impressive cloning project. I saw them and couldn't help wondering... what drivers to use, how to cross over, if you'd need a full 1 1/2" MDF for all of it. Anyway, I was just wondering if anyone had seen/done these, or what other monsters have been done.