Wooch, what are you doing to me? Don't temp me!!!

I've got a 20 X 24 room that is nicely filled with decent bass by the PW-2200 I have now. I believe the Rava and 12" Titanic would be significant improvements, the 15" Titanic is overkill.
That Tumult monstrosity would likely get me in trouble with the neighbors. (that's my way of saying it's about 2.5 times too expensive).

You're right about sub options exploding...even commercial offerings (ported and sealed) have multiplied and become better and cheaper in the last few years. I'm not married to Dayton or the Titanics at all, if anyone's got a sub project idea under $600 or less they think is better I'd love to know. Unfortunately, I don't know how long I can hold out...I've got a buyer for the PW-2200 that'll cover most of the cost of this upgrade...must....resist...