turn your bass down on your deck and lower your mid and raise your high. when you turn it up you can still get the same bass usually but you should be able to get more high to match that bass. you will basically be getting more volume and you can get the same amount of bass. thats what i did. all i could hear was bass cause i stood up a couple subs in the backseat. so what I did is I turned the bass down on my pioneer deck and when i cranked the volume higher, I got the same bass output but ALOT more highs to slice through the bass. sounds great to me.