Alright, man. Got the LOC and AMP wired yesterday and this sub absolutely slams. I can't wait for it to break in. The sensitivity on the LOC and the amp is turned way down and I removed most of the bass out of the factory "EQ". I'm disappointed with the tuning. I'll have to mess with it some more but we're obviously limited by the factory tuning and door speakers. I didn't experience any roll-off of bass and I haven't taken it out to see how the FENG sounds. Can't wait to get rid of that though. I'm thinking the Nav TV Zen unit will happen sooner rather that later, which I kind of expected to be the case. Time to start saving for the Zen, components and amp!