Yes, it's largely a floor space issue. The front wall is pretty crowded by the combination of furniture & the mains. Eventually, if I were to replace the Salamandar cabinet that's used to house the electronics, which is front & center on the front wall, with some kind of open table, then I could put the sub there, directly under the plasma. But we spent $$$ on the Salamandars and I can't quite swing the idea of replacing it right now.

I stil make it all work but I'm just trying to understand the tradeoffs.