Well, lets start off with my setup. I am running the factory head unit, I have one of those little boxes from circuit city so I can wire up a sub/amp, I have a kenwood 1000w amp and 2 L7 Kickers. I have wired them up in many different variations. But I still get the same problem. Now It is being more common. The subs will hit very hard then dim down and stay that way for awhile. Every now and then it'll go back to normal and pound once or twice, then fade away. It used to only happen when I pushed them very hard, but now it is all the time. Any ideas? I really appreciate the help.

-Ant.