IS THIS BADD WAT CAN GO WRONG ??? no stupid answers plzz ?

Question

hi i have 8 gauge power cable running to a splitter box then from splitter box is 8 gauge into a 500wat kenwood amp powering 2x 1500watt oversized kenwood subs that are bridged onto 2 channels and from the splitter is8 gauge again to another amp that is 400wat powering a 1200wat rampage sub off 1 channel and a pair or fusion 3way speakers that are 280watt and a pair of us audio splits tht are 200watt off the other channel and it work good has lots of bass but is this bad wat can happen and how long untill things can go wrong , wen i have the car not running it sits on 13v i am using an oversized deep cycle battery to and wen i turn the sterio on it drops down to around 11.5v then wen i turn it up round 25-30 it starts hitting 10 volts and everythign dims very bad but wen car is running it sits on round 11 volts wen up around 25-30 so yeah i just need to no is this badd i dont really wanna upgrade power cable or get a capacitor either so i hope to get some decent comments back from this :) and yes i no ive done the big 3 did not do much and i dont want to buy a cap or a new altanator

Answer 1

you need 4 or 0 gauge wire, the wire you have putting much resistance, that why everything dim

Answer 2

Sorry but you need a cap and a more powerful alt. I had the same problem until I got a cap and a 200amp alt from powermaster and you might want to upgrade the wire coming from the batt to a 4g wire the rest sounds fine.