Perhaps you already know this, but you should never assume where to put the sub(s) in the room. I originally put mine in the center spot in front, but after doing the "sub crawl", it was determined that the best place for the sub was just a bit forward of the left or right seating position. That's where I got the fewest nulls through-out the room.

https://docs.google.com/spreadsheet/ccc?...amp;usp=sharing