...in order for bass to be heard and possibly felt outside of a vehicle? I mean, the other day we're standing in front of some stores and a Cherokee comes tooling by and we felt this guy's low tones from his system through our bodies, and we were in the street....yet, in my Accord, with two Rockford 15's and a Punch 800.2 amp bridged, no one turns their heads with my system cranked...is this the vehicle, the gear, what?