What should I do to maintain my solid state amp? What would an amp tech do for regular maintenance? Some of the pots are getting a little scratchy. I know there are products used to spray into the pots to clean them up. Is there a down side to doing that? Are some of those products bad, others good? I am not an electronics guy, but I am aware of the dangers of high voltage and capacitors. I would gladly take it to someone, but If you are not important where I live your amp will be in limbo for quite a while and you might. even have to take it back to get it done right. I know this from experience. My amp is a Peavey Mark III Bass 400. Anything particular to do on it?