volume fluctuation

Hi, I've been having a problem with my setup and any information would be appreciated. I have a basic setup, aftermarket head unit, amp and sub in my '02 Grand Am SE. I like to listen to dubstep and trance music mainly. The dubstep sounds great with the heavy low notes, but with dubstep and...

im runnin a jl audio 1000/1 to an orion hcca 12" wired at 4 ohms. ive recently had the jl in for repair and i had to get my sub rebuilt because of the amp malfunctioning. the day after i installed my high output alternator and my brand new optima battery i was driving on the highway with the...