basically if the only thing that mattered in how many DBs you could hit was the sub alone then in order to beat some1 else all you would have to do is find a sub with a higher DB rating or just simply have more subs than the next guy.. This is simply not the case...i have a single 10 in my car and though i havnt been metered,, people that have two 12s tell me i hit harder than they do..