Originally Posted by subbie09
Factory crossovers are somewhere within the stock amp.
So is it safe to assume the head unit (130S/RES) of the stock 6 speaker system directs frequencies to the appropriate speakers i.e. the front tweeter/woofer and the rear midrange? If so, what effect would installing external crossovers that come with aftermarket component systems have - overkill or more ability to taylor the frequencies? Do they really need to be installed on the base system if the headunit is already doing that job?
ps - i know you upgraded the Alpine system vs the stock system