stevefoobar

First of all to the concerns about WD-40, it's not intended to be a contact cleaner for electronics although many people seem to use it with no adverse effects, including myself over the years in a pinch. Ideally though, go to your local Radio Shack store and buy a can of general purpose contact cleaner for a few bucks. As the for pots in the Promedia 2.1, yes, it's true that the pots are mounted unside down in this control pod. Having said that though, I have had success spraying contact cleaner directly over the top of the pots and letting it drip to the bottom as well as spraying the very small area where the control shaft goes into the pot, then doing this multiple times while letting the boad stand at different angles to try to let gravity do it's thing. Also, if you don't mind a mess, the contact cleaner you can buy at RS is a VERY high pressure can. If you spray it closely to these areas and stand back (especially with your eyes covered) some of the spray can't help but get inside the control. Of course, rapid twisting of the contol as others have pointed out helps work any that gets inside onto the resistive surfaces. I've done this successfully to remove the noise when turning the volume control. It's worth noting that the noise always occurs where you mostly adjust the volume control. For most people this is at the very lowest end to about 1/4 of the lowest end. Another solution if this doesn't work for you is to adjust your software volume control so that you can leave your Klipsch volume control more toward the center, where it doesn't wear as much. Hope this helps. P.S. One last thing...you REALLY have to push hard to get the pod to slide off of the speaker bottom. I had to actually carefully "pound" on the pod with the base of my hand to get it to budge.