Cleaning audio components with 90% isopropyl alcohol

I just use a microfiber cloth

I just spit on them and wipe clean with 10ply toilet paper. I find it really enhances the sound. 

You really should get some CRC +1 @toddsyr if you can or Deoxit D5, for contacts and pots and the green F5 for faders plastics etc.

Use Deoxit D5 for initial cleaning, then apply PreservIT P5 to preserve the surfaces. This is an industry standard in recording studios world wide.  

Electronics alcohol is great...the 99% is best second.Mg chem contact cleaner,no residue.Alcohol has a wait time if spray.