I currently have a alpine cda9847r deck
hertz esk 165 speakers up front
hertz he2 amplifier
it sounds good but i want it louder, so was thinking sub or 6x9, my budget is about £60. (have seen amps and 6x9s on ebay at this range) and have spent too much already. also the only sub i'd really fit in the car is jl audio and they're rare.
i'm edging more towards the 6x9s, but the fronts are already amped so really wanna leave them and the amp aone. but someone was saying somthing bout high pass or low pass.
so if i get a seperate 2 channel amp for the 6x9s what do i do and is it possible to do the low high pass thingy to it
also will the 6x9s also give some sound instead of total bass