SFL 2 humming issue


I have a SFL 2, bought second hand which has been in the system for about 1 year. I have heard from somewhere that it has a sort of humming issue. I would like to get a feedback from anyone out there that has had a experience with this. It is not much of an issue when I play music, but when the system does not play anything, I could hear it. What can this be due to? I do not think the tubes can be something that hum, or can they?
bemopti123

Showing 1 response by kevziek

Go to the power supply unit and listen with your ear close. If it appears to be coming from the transformers, that is normal. I did hear that some of the transformers were louder than most. However, all of them are going to make some hum. There are two (dual mono) and they are the size of some small amplifiers.