Ok guys i just got my new box built for my two aq 15s and it sounds great! I also did the Big 3, on my cap its still reading the same numbers 13.8-14.1, but my engine light went off. Thats the only difference i noticed with the big 3. The 15s are being ran off of a AQ2200d at 2 ohms. The amp pushes 1300 x 1 @ 2ohms. So each sub is basically getting 650 watts and all of us know thats like a pinch of power for these subs. As i break them in they will get louder. I am thinking of running it down to .5 ohms, so how much would each sub be getting? OR should i just leave them at 2 ohms for now, and buy another 2200; that means if i buy another 2200 watt amp im going to have to buy an upgraded alternator. I really dont want to wire them down to .5 ohms bcuz i dont want anything messin up again so soon. But i also want more power after the break in is complete. Tell me what u guys think. I think im going to just go ahead and spend the money on an alt and another amp. Also if i buy another amp, what other upgrades will i need? will i need 1 more battery too?! (I already have one under the hood and one in the back). Let me hear ur opinions. Thanks!