Barrelchief, I think for the most part the outlets that are called “Audiophile outlets” have been altered in one fashion or another to be an improvement over the hospital grade. Some outlets are even produced with slightly tighter tolerances to make the contact points tighter.
In some instances they are gold plated or silver plated. I believe the plating process, same as the various materials used in production such as copper, brass, mixtures etc gives different variations to the end product, (the sound).
When the outlets are cryogenically treated in the correct fashion (as many but not all of them are) it usually leads to additional enhancement in the ears of the beholder, that can actually be heard with a revealing system and some experience. Many but certainly not all of the Audio level outlets are given different names but they boil down to a variety of Hubbell’s, or other major brands. For example the Acme Silver plated cryo’d outlet is a Pass & Seymour (older fashion with only screws to wrap the wire around) that has been carefully disassembled silver plated put back together and then cryo’d. I'm currently am doing a demo with the Acme at the present time. It seems very pleasant; the question is what sound does the listener prefer?
In some instances they are gold plated or silver plated. I believe the plating process, same as the various materials used in production such as copper, brass, mixtures etc gives different variations to the end product, (the sound).
When the outlets are cryogenically treated in the correct fashion (as many but not all of them are) it usually leads to additional enhancement in the ears of the beholder, that can actually be heard with a revealing system and some experience. Many but certainly not all of the Audio level outlets are given different names but they boil down to a variety of Hubbell’s, or other major brands. For example the Acme Silver plated cryo’d outlet is a Pass & Seymour (older fashion with only screws to wrap the wire around) that has been carefully disassembled silver plated put back together and then cryo’d. I'm currently am doing a demo with the Acme at the present time. It seems very pleasant; the question is what sound does the listener prefer?