I found a Sunn 6x12 cab that appears from the 70's or maybe 80's. It's has 6 12-inch speakers that all appear original. I haven't taken the back off, but I think they are JBL speakers... The cabinet is monsterous.. But I can get it for $250. Should I? I wonder what the Dr Z Route 66 or even my Mesa Boogie Mark II would sound like through that monster!?