I have just put in my system and it sounds great! I just need a little more bass. My setup includes Focal components in the front, Focal coaxials in the rear powered by an Alpine V70 amp,(I think thats the model number) and a sealed 10in jl audio w1 that i borrowed from my f-250. It sounds cyrstal clear and bass is nice and tight, the problem is i need a little more bass. Should i go with 2 10's or 1 12in? What do you have in your vehicle and how does it sound? I am sticking with sealed boxes for sound quality. Any advice is appreciated. Thanks!