My Cervin Vega 2000-15 speakers have served me will for 16 years, and have no desire to replace them. Last night I noticed that one of the 15" woofer surrounds has a slight tear. I know what would happen if left untreated, but am not sure which remedy to take. Would there be a problem with using silicon to repair it or should I just replace both surrounds with a kit from Parts Express? If I take the replacement option, any tips that you could provide would be appreciated.