I don't want to get into this too deeply on a personal level. I have known Lloyd for years, and I like and respect him highly. In my experience, every one of his tweaks works, but I have not tried them all (as you can tell vis crystals). I think his turntable is one of the finest I have ever seen or heard. The Walker Motor Controller, which I do own, made a sea change for the better in the sound of two of my turntables. It is difficult for me to engage in this discussion without seeming to be disrespecting Lloyd, but I assure you that is not my intention. So Benjie, do you think Lloyd can refer me to a paper in the scientific literature that describes absorption or dissipation of RFI by inert crysals? If so, I will call him. It would behoove him or anyone else making such claims to post the supportive references. I don't by the way deny that you or Geoff hear differences with crystals in or on or near your equipment; I am only wondering whether the given explanation holds water. In other discussions and on other websites, crystals are said to act by controlling "resonance" (as Geoff says in the quoted passages), not by absorbing RFI. Who can argue with something as vague as "resonance control"? Not I.
Geoff, you did write, "I also propose that - in almost all cases - the actual operation of a crystal or group of crystals in an audio system has nothing whatsoever to do with RFI/EMI absorption - rather acoustic/mechanical energy absorption!" I guess you can cling to the fact you used the word "almost".
Geoff, you did write, "I also propose that - in almost all cases - the actual operation of a crystal or group of crystals in an audio system has nothing whatsoever to do with RFI/EMI absorption - rather acoustic/mechanical energy absorption!" I guess you can cling to the fact you used the word "almost".