I have read some negative comments on here about JBL's E250P. What are the downsides to this subwoofer? No, its not going to knock the walls down, but my room is 15X15 and its in a CONDO. I don't want to make enemies with my neighbors. Is there another subwoofer in that price range that I should be turning my attention to? Is there another subwoofer that the MAJORITY agrees is better (in that price range)? My set up is E20s X4 and EC35 center.