I agree with Jason on this wholeheartedly.

Myrison, I don't know if you read my post on a Trooper concert that I attended. I had never heard bass like that before. We had to leave a half hour into the show because I was getting heart arrhythmia. Everytime a bass string was plucked, I'd feel it first deep in my chest and then it rattled my junk down below. It was an incredible feeling but my body just couldn't take it for too long. The drum hits almost made me lose bladder control. Indeed, a few that had one too many beer succumbed to the bladder-squeezing pressure waves.

Now I am of course not looking for anything close to that degree of punch.

House of the Rising Sone
Out in the mid or far field
Dedicated mid-woofers are over-rated