It developed that loud popping noise, and the only way to fix it is to apply some contact cleaner between the two disks of the attenuator. But I can't even get the knob out...
It developed that loud popping noise, and the only way to fix it is to apply some contact cleaner between the two disks of the attenuator. But I can't even get the knob out...
Actually you don't need to taking out anything, just open the top aluminium cover, and apply contact cleaner to all of attenuator surface while moving the vol knob to all direction
Anyone else had luck with this? My volume pot has started to get it pretty bad, already.
Sounds like you should zap it with deoxit. How old is it?
A month or so :/
I used a pre amp with a stepped attenuator for about 5 years. This was used by me and my family on a daily basis with zero issues and zero maintenance. To be honest I would be a bit disappointed to pay the price for the Burson and then have to open it up and start spraying WD40 on it after a month... Apparently the WD40 improves the "sound quality and relaxation".
Remember WD40 is a solvent, not a lubricant...I would not use it too often if at all in there.
For me, WD40 is a also bad idea.
That's a shame...
I have been eyeballing the Soloist ever since Skylab's review was published at InnerFidelity, so I'm disappointed to hear that some owners are having to spray contact cleaner on the attenuator.
I can look the other way when the volume control of my iBasso PB2 portable amp makes a slight scratching sound, but I wouldn't have expected this to happen with a Burson amp.
Have any owners contacted them about this?

Mike
It seems like not everyone is having the same issue. Guys, if your unit is still under warranty im sure there's something you can do.
Folks at Burson need to know about this issue, so they can give a solution.
You mean send a can of WD40?
I never had a problem with either Burson. Now if people are expecting DACT smoothness and lack of click, good luck. All I can tell you is when you move to a new step... the volume changes. Any other expectation is just not reasonable for this level of stepped atten.
Actually, they already know this issue very very well.
But it's the risk of using the attenuator volume pot, it just can't help. (Well actually contact cleaner can help
)