Re: Stock battery dimming (OUT) --> (NEW) kinetik hc800 dimming too??
I'm guessing the batt and power supply are rather close so the wire isn't the problem but dropping to 11.5 is the power supply not being able to keep up the demand for amperage and the battery at no load rest is 13.2 so it's good but I'm guessing the battery is small and your pushing it to its limits as far as amp draw so you may want a second one to help some but it sounds About right your not going to get 14.4 without a serious power supply and a large bank of battery's just wait u til you get a car it will be much easier and slightly cheaper!
electrical: Optima yellow top, big 3 in stinger 1/0g
HU: JVC AVX-77 touch screen
Front stage: RE XXX 6.5" comps
front stage amp: Rockford T600.2
subs: 2 Rockford T1 12's,
sub amp: Rockford T1500.1BDCP
Enclosure: center port(designed&built by JayDubb757)