i had my system hooked up previously to my aftermarket hu and it sounded fine. now i have it hooked up to my stock hu on my new car and i have to have my gain almost 3/4 up in order to get my sub to move. is this gonna damaged my sub since it was used to a lower set gain? any help would be appreciated
no harm, no. all this means is your source line voltage is much weaker, so you need to turn up the gains on the amp to balance that lower voltage to the input stage on teh amplifier.
how do u charge a cap. i mean after i disconnect the mainfuse and hook up the cap do i put one end of the test light to the fuse holder then the other end to the other end of the fuse holder running to my trunk? i mean i dont want to electrocute myself.