I have a rockford fosgate 25 to life... And it seems to work great, but then when I have it up pretty loud for a while, it sometimes cuts out and goes fuzzy... The amp is stable at 1 ohm for both the 4 channel and the sub out. I am running 2 re audio se 10s, at 1 ohm, they are dual 4 ohm, so I have all positives running together and all negatives running together... Then I am just running my highs and mids straight at 4 ohms. I have a set of infinity kappa perfect 6.5s, and a set of infinity kappa 6x9s. This issue did happen once before when I didnt have the sub channel running... And it happened once when the subs were gonna hit a hard note... Also, I have had to resolder a wire on one of my 6x9s, it sounds like it could be that... I have all gains about 2/3s of the way up...