As a former SL3 owner until last July I would say if these are the original panels they are probably past done their useful service. I had mine from 1998 ( repanel 2010) to present. They still sound great but decided to get 11A's when ML had the sale last July.
Repaneling is costly. I am awaiting CLS panels($ 2995) which took 5 months. I have the same issue , washed them, no difference. Just a dead panel that is 20 yrs old.
Suggest looking at the new ML's as the new panels have improved, better bass integration,etc. Good luck
Repaneling is costly. I am awaiting CLS panels($ 2995) which took 5 months. I have the same issue , washed them, no difference. Just a dead panel that is 20 yrs old.
Suggest looking at the new ML's as the new panels have improved, better bass integration,etc. Good luck