I have 2 l-100's that I purchased new around 1973 along with a Sansui 9090 that has an output of about 110 watts per ch. My brother had the system for about 15 years and when I got it back ,It had 2 blown le5-2's and 1 blown le25. I replaced the bad speakers and 2 days later one le5-2 was blown again.So I bought 2 more but I cannot afford to replace speakers every 2 days. Back in the 70's I ran the speakers at full volume and full everything and never had any problem. Could the caps in the crossovers be bad? Any help is much appreciated in advance.