This is the first time on this forum I've heard someone say this. I agree.I had one without BP. It got impressively loud and while people tend to claim they sound good, I disagree. 1cuft moderately stuffed sealed box, sounded... not like garbage, but definitely not good. My CDT QES-1220 (second still waiting install) sounds a good bit better to me. More articulate... less distortion. If you don't care about that too much (or if you've heard them before and disagree - it is only my opinion, after all) then $400 for the 2 is pretty good.
You aren't supposed to run Fi Q's in sealed boxes unless they have the high QTS option. IMO, the subs are made for low tuned ported enclosures to really shine anyways.I had one without BP. It got impressively loud and while people tend to claim they sound good, I disagree. 1cuft moderately stuffed sealed box, sounded... not like garbage, but definitely not good. My CDT QES-1220 (second still waiting install) sounds a good bit better to me. More articulate... less distortion. If you don't care about that too much (or if you've heard them before and disagree - it is only my opinion, after all) then $400 for the 2 is pretty good.