Hi, I've got two old tube amp heads, one is 4 & 8 ohms and the other is 8 & 16 ohms switchable. I want to have the flexibility to use both of them to drive my two 8 ohm 15" cabinets. Of course the 4 ohm head will work no problem, but I'm wondering if there is a way to wire the cabinets which will allow me to hook them up in series to get a 16 ohm load as well which will allow me to use them in parallel for a 4 ohm load. I think I can if I leave the bottom cab wired the way it is and install a third 1/4" jack on the top cab(both cabs are the same) which will let me dedicate two jacks on the top cab to the series wiring and leave one jack to keep wired as parallel. This is probably confusing without a diagram. Anyway has anybody done this? Can it be done? Any advice before I burn my fingers with a soldering iron? Thanks.