I have the planet audio vx2200 amplifier which is a good amp and was pushing 2 kicker l7 2006 mods in ported boxes good. It blew the one @ 2ohms, so despite the name, its good and powerful. Anyways all of a sudden the amp stopped pushing the subs but came on every time. I am not sure if it's the signal bc I dont trust the guys installing it. How can I fix the problem if its the signal or how can I make sure its the amp if I do not have a system to use it on? I tried another amp right after and the subs came on. The amp was pushing them hard for about 1 week, everyday. Anyways can you help me with this problem. It's $70 to get it fixed and I am not sure if it is messed up? Help! Thanks