You need to open the speakers up and pump the volume potentiometer full of De-oxit while working it through it's full range of motion. Over time, it's built up some corrosion to the point where it's now making intermittent contact. Cleaning the pot should resolve the issue.

Thank you very much!

I have the same problem with my Roland MA-7 speakers, and contact cleaner spray in the pots don't seem to completely fix it, so I'm actually considering replacing the pots. But it is such a minor problem, I might put it off indefinitely. 😁

Replacement pots can sometimes be difficult to find, but it's definitely a more permanent solution.

LunarG wrote:

I have the same problem with my Roland MA-7 speakers, and contact cleaner spray in the pots don't seem to completely fix it, so I'm actually considering replacing the pots. But it is such a minor problem, I might put it off indefinitely. 😁

That's a shame. The best sounding modern PC speakers I ever had (Klipsch Promedia 2.0) had the cheapest, shittiest pots. The carbon traces were gone within a year 🙁 I bypassed the volume and bass controls and used the PC volume, until the IC inside finally died.

probnot wrote:

That's a shame. The best sounding modern PC speakers I ever had (Klipsch Promedia 2.0) had the cheapest, shittiest pots. The carbon traces were gone within a year 🙁 I bypassed the volume and bass controls and used the PC volume, until the IC inside finally died.

I had this issue since ever. All my speakers developed this problem after some years, usually within 5 to 10 years. I now finally gave in and bought some higher-end speakers (Edifier S1000DB). Let's see if they'll also suffer from this. 9 years to go...