I have a 300/2 polk momo amp 550W RMS, pushing two 12in pioneer premier 8ohm subs 400W nominal, 800W max. These are in a 91 honda crx. The system was pounding with the stock 60amp alternator and stock battery. I changed the alternator to a 115amp and now its not as loud as before and there is distortion and the freaking amp shuts itself off. What is going on? Im about to rip everything out with my bare hands.