Audio freak
Member
I have a couple xfl 12s on a kicker cx1200.1 wired for a 1ohm load at the amp. The amp approx. puts out around 1500watts rms. I also have the big three done. I have a kind of cheap powermaxusa HO alt which is "supposed" to put out 220amps. I don't think it does that but for the 160 dollars I paid it does much better than the stock alt. Now when I have my subs hitting hard the voltage it pretty steady above idle (revving driving) it stays above 14volts but at idle it drops below 13.5 and sometimes even below 13volts down to 12.5volts. What I want to know is buying a few big xs power batteries or a better HO alt gonna help this? Do batteries actually help with voltage and current?