Help!! I am building a cabinet to house my big screen TV and my audio set up. I am going to build the subs into the cabinet. My question is...has anyone built their own subs using Klipsch 12" woofers. I own Klipsch legend speakers so I was thinking about using the Legend 12"s. Or would it be better to use Klipsch 12" woofers designed for sub use. Also any box parameters or design hints would be appreciated. Thanks, Gordon