Sennheiser RS120—volume knob causes static/dropouts in 1 ear (2 pairs), [TOS #6: was "Sennheiser RS 120 problems"] Options

[shepard]

I bought my first pair of these 4, maybe 5? years ago. I only use them to watch TV and really like them. After a couple of years the volume knob started not working properly. I hardly ever use it as I set the volume once and for most TV it is fine. Once in a rare while I will adjust them a little. What happened is that the adjustment would cause static or cutting out in one ear when turned. I figured I had them for 2 or 3 years, I would just replace them. I did and all is OK for a couple of new years with the new set. But just this week they started doing the same thing.

Is this something common with these? Seems like a loose connection or something. I searched and saw a thread here about another brand doing something similar and the suggestion was to "clean" them. Does that make any sense?

Thanks!

[Nessuno]

Is this something common with these?

It is something absolutely common with all contacts, especially rotating ones like volume potentiometers, the more if you use them once in a while. To clean it try first of all to rotate it rapidly from zero to full scale a few times.
Best thing to do, of course, is to spray inside some contact cleaner.