Im looking for some guidance on a replacement 12 speaker for one of my cabs. I got the cab from evilbay a few months back on one of those Ill bid $40 bucks for the heck of it deals and low and behold I won the thing. Its a Madison cab with a 12 a 6 and a horn, built in crossover and lpad for the horn. Its well built and seems well worth what I paid for it. Ive used it along with my 4x10 for the last few months but recently Ive noticed a horrible rattle and buzz coming from the 12. Ive not put enough power to the thing to damage it for sure and Im wondering if it didnt have some sort of problem to start with and it does have a rub if you press on the cone. Anyway I was wondering if anyone has had some experience with aftermarket replacement speakers and could offer some advice. Keep in mind Im on the Al Bundy budget hence the $40 cab so a brand new EV or the like is unfortunately not a practical solution for me.