i am going to buy a audiocontrol dqdx so i can increase my rca voltage to my amps up to 5 volts. i have an aftermarket jvc double din which is a little weak on rca voltage. i am running a rockford punch 1000bd at 1 ohm on two punch 12" p3d4 subs ported to 33 hz and a punch 600x4 running 4 power...