I just got kicker door speakers and they have been in my car for about a month, when i listen to my music loud they kind of dim and dont sound as loud anymore, then i have to turn it down for a sec then put it back up to the volume and they then dim again, no the volume is not being turned up too high, the speakers are being run off the headunit and i have a pounding system which im begging to tihnk that the system is whats making the speakers dim , or the speakers are justs bad, anyone have any clue on wtf is wrong

 

if its powered off the HU and its loosing voltage it could do that. how good are the power and ground connections on the HU??