So on way home yesterday with limited max with b&o I turned up the radio and it had decent midbass type sound. I was like hmm ok this one doesn't have a sub. Well we get home and the kids have all doors and back hatch open and turned up the radio and it was jamming. I look at my wife like where did this come from. Lol. Look in back sure enough it has a sub. Close up vehicle and you barely hear it. Is there a secret to get it to hit like it did with everything open.