I've been following the 2x10 and 2x12 threads with interest. Someone mentioned using two single 12s along with the 2x10 instead of a 2x12. This seems to make sense for flexibility and portability. My question is how to hook up the 2x10 and two 12s cabs so the result is an ideal 4 ohms. My amp is mono and has two speaker outs so obviously one cab would have to be daisy-chained. Does daisy-chaining of say two 8ohm cabs result in a 4 ohm or a 16 ohm load? Thanks!