ok i just got a 13w7, powered by a jl 1000/1 amp, and it is in a custom built ported jl box i bought from limitkid7. well when i crank up the volume my subs pops on certain frequencies...so basically it'll hit good on certain notes, and on one note it'll pop. I even turned the gain all the way down and the boost. but then it doesnt sound as good....so i give it a little boost +2 db. and when i crank it up it does it again....whats wrong? p.s. the speaker wire and power cable ground wire and remote wire arent fasted in the amp all the way, its kind of jammed in there at the moment. could that be it?