10-day trial makes it easy. I just have to eat shipping if I don't like it. I didn't realize the 2x10s were 4ohms only.Just don't be shy with your EQ let your ears be the judge.
What kind of tricks do you mean with the EQ? I have to run a slightly abnormal EQ with my GK MB800 and the SWR 2x10 already. I cut everything and roll back the highs quite a bit.
On topic, I'm also thinking about buying a SB4000