I think I gotta agree with you lord... especially since if it is a load problem at least 2 of the 4 speakers are going to either be wired in series or parallel with each other, meaning that if one is going to crackle from a load issue, at least one other should be also. I mean, it's not like he is running a seperate channel to each speaker...it also could just be sheer coincidence that the other cabinet has a bad speaker also. I have seen stranger. I once has a guy come into my shop stating that the radio I put in for him made his headlights on his truck quit working.... After an hour of going over everything that could have possibly went wrong to no avail, I finally checked the bulbs. They both went out at the same time. That is completely unheard of, but it happened...