topic says it all.. before i order new figured i would see what you guys might have laying around any ultimax subs for sale i would really be interested in a pair of 15's or 18's.. but others considered if price is right. I bought my rs100p-04's this winter. damaged one of them installing it and need another. wasnt there a design change a while back? if so I would need a newer one.. or possibly better off buying a set??