something bad happened… I went home from work earlier, made radio on, once again a loud whistle next to the music. strangely enough it wasn’t there 8 hours ago and I didn’t play anything at all in the time. it’s: again not speed dependent even at radio 0 whistles it I can not explain where that comes from at once!?? have also pulled off a short chinch cable but also there whistles it. so it can’t be from the radio already. I’m afraid I scraped you et… there’s no more performance, it’s all clipping early… fertile I tell you… who’s a tip what can be going on? where do I put it if I want to have it repaired?