Like many others I have found the acoustic noise of the Pro-x extremely loud and annoying. So what I did was applied some vinyl car wrap to the underside of the cymbal which helped a lot, but to get it even quieter I taped some rubber on the bottom side of the cymbal as well. Made a huge difference. I just used some rubber off a broken cymbal, but I'm sure any 1/16" rubber or neoprene would work. You could also try covering the whole top side of the cymbal in rubber.