My room is bigger still at 945 square ft and my recently purchased REL S812 subs (available in white I believe) look as good as any sub (although subs never look good), but they add virtually no sound benefit as my main speakers are full-range. If you can move to full-range main speakers, you save the extra cost of subs and cables, plus the massive increased setting up difficulties and the floor space they require - and the WAF is solved.