I think I was the asshole in that thread...so don't forget to read my comments!

And op...Matt is right. Turn the gains down!!!! Nice tight bass is a product of good integration between the subs and your mids. Otherwise you're doing it wrong and it's boom boom with NO snap at all. Matter of fact, it can end up cancelling a lot of the mid-bass and you'll get headaches or ear fatigue.

A well tuned system cranks and doesn't cause any discomfort for anybody.