My CHT-12 has had a problem for a while where i will hear a buzzing noise coming from the amp whenever it's playing a sound thats around 50 or 60 hz and its really annoying. Happens at all but the quietest volume levels. I emailed Velodyne and they said i can mail them the amp so they can fix it, but I was wondering if I can fix it if it's just something loose.
Are there any special safety precautions to handling the amp? Are there capacitors that need to dissipate after unplugging?