Ok, I have 2 Alpine Type-E 12" connected to a Boss PH2.800 1600w amp (2 x 260rms at 4ohms) and a 3.5 farad capacitor. Now, I have a little issue with the capacitor, when I turn up the volume for more than 20 the voltmeter goes off and the capacitor start making a beep sound.
I have a 4 gauge...