> I e-mailed Ethan about this, but he'd rather me put it here so the whole world can be helped
<
Right, when someone wants personalized service and consulting, I need to charge for that.
> Whats the best way to go about trapping that kinda bass? <
Big bass traps, and plenty of them.
Seriously, there's no cheap, easy, or
small solution for treating really low frequencies. Once all of the corners are treated with rigid fiberglass bass traps, the next step is panel traps flat on the walls. The low-bass traps in my
PLANS article are centered around 100 Hz, but you can alter them to go as low as needed. I also agree with the others that you should measure your room before going to the considerable effort to build custom traps. And that measuring should include modal ringing (waterfall plots), not just a simple RTA frequency response. Then you'll know much better which frequencies are the biggest problem.
--Ethan