I have a 2010 Escape with the premium sound system and yesterday, I wanted to check out how good/bad the stock sub was so I played some music and went to the back to see how the stock sub sounds. OMG, it's horrible so I'm wondering if it's defective? I've always gotten halfway decent bass but now I found that 99% if not more of that is coming from the door speakers. The sound I heard coming from the stock sub was nothing more than a distorted, muffled sound...it almost sounded like someting was out of phase, or if the sub was blown. Just curious if any of you other premium sound system owners get somewhat decent bass out of the stock sub or if what I'm getting is the norm? Honestly, the way the stock sub sounds right now is so bad that it's a non-player in the system.