It makes sense that it is a combination of all the factors. I guess the answer to Mark's question is that calling the sub picky is just an easy way to state the problem. In the end, all other things being equal, your room isn't changing when you replace a sub. The room is the constant. A different sub isn't going to make the room better or worse. It will just interact differently.

"That's some catch, that Catch-22." "It's the best there is." M22ti VP150 EP350 QS8 M3Ti