I have a slightly larger room...200 cu ft more.
What are you willing to spend? Which sub are you looking at?
Go with the VP150. If you're going with the QS8's then don't cut yourself short by going with the M22's. the M80's are 4Ohm and probably overkill for your area. The M60's will give you what you probably want. That's what I use and I have no regrets. The last thing you want to do is under-size and then have regrets. But too big is no good either because you cannot utilize what they have to offer.
VP150, QS8, M60, EP500???
You will love it!
