Subscribed to this one.
long time lurker here, I just read your entire thread. I am amazed at the speed and the quality of this build!
You, and Big have some crazy skills! I think that Big might just have to coolest job there is!
and btw, I had never heard of the OS subs before reading this thread, and before that I think the most extreme sub set up that I had heard of was the IB Subs.. ( or those subs that use fan blades.. I cant remember the name for them, but they looked crazy too. these OS subs look like thay might be right up there with them)
so, in your (or anyone here who knows) how would a couple of OS subs compare to a large IB sub array, in terms of sheer thump, and FR?