I'm sorry but there is no such thing as "treating". Vibrations and EMI are not even real things in modern day electronics. Most EMI has been phased out over the last years with modern chips that are natively resistant to it. Vibrations are what? You mean the speakers themselves vibrating? There are many things which you can use to isolate speakers so this could make a difference depending on what speakers you use and where they are positioned. You just keep spreading this false information around with these crystals and nonsense almost in a way that sounds like marketing.