How to make your sub hit lower bass

1)Change the music you play.Choose a song that contains low bass frequency bass notes, lil jon songs have crazy bass that give a great excursion test.

2)Increase the bass on you car deck by adjusting various sound settings can help boost and increase the bass response played for you subwoofers.

3)If you amplifier that powers your subwoofers has a built in bass booster circuit then make sure its is turned on to make your subs hit more lows.Don't turn the bass booster all the way with a screwdriver.Instead turn the volume on your car head unit to the maximum level and the slowly turn up the bass booster dial until you hear any distortion as this can destroy sq (sound quality) if its turned up all the way.