I have a dilemma, I don't know which setup to buy. I'm thinking either a SWR Super Redhead and an extension cabinet or an Ashdown Mag 600H and or an Ashdown ABM 410T. I know both are very versatile and I've played on both and I can't decide. So I turn to you guru's of the low end and ask for your assistance.

I also have one question, can I use any cabinet as an extension cabinet or does it have to be dubbed and extension cabinet?
GAS List: