I compete in USACI. Termlab on the kick,windows up, door cracked. Just competed in New Jersey Sunday at Raceway Park. Burped a 149.6. If im not mistaken (very well could be) im at 1.6 ohms with these 2 mismatched subs. I have pics on Nesoundoff.net. Oh and just 2 batteries, 1 up front and 1 by the amp.