Does any one have experience with the fuse blowing tendency and sporadic sibilance of this otherwise wonderful amp? I bought the amp about a year ago had it serviced at CJ a few months ago because the amp is still under warranty. CJ resoldered some connections and the amp was okay for a while but is blowing fuses and/or producing an unpleasant sibilance again. Any knowledgeable suggestions? Please let me know. Thank you very much. Sincerely, Chuck