I love the tone and clarity I am getting from my new goliath III 4x10 cab, but I am looking for more volume. I have been playing through an Ampeg 8x10 my whole career. I was wondering if you ever had a chance to couple the goliath with another cab like another 4x10 or 1x15. I guess I would be leaning toward a swr 1x15, but truthfully I have never heard the pair. I am running through a workingman 4004 head. Any opinions from someone with experience would be super. I don't really need super low freq's (I play in Drop-D).