Welcome Osborne. That sounds like a very nice setup. You have a very big space to fill and you would definately benefit from another sub. Sounds like you will have a major challenge 'sneaking' another sub in though. Long term, I wonder if there is a way to build a sub in somewhere so it is not so conspicuous?

Post some pics when you get a chance.

Fred

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