Have you looked at svs at all? They also build some very good subs. I don't know about dimmensions though.

I have the EP350 as well and it is a very good sub. It has enough output for all but the largest rooms.

However, there are other subs out there in this price range that will reach lower. I do not know if they will meet your physical footprint though.

Fred

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Blujays1: Spending Fred's money one bottle at a time, no two... Oh crap!