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RE: OK: name a few

Hi Feanor (sorry about this mispelling earlier),

The main attributes that differentiate hospital grade receptacles from standard ones are: 1) High Tension blade wipes to provide maximum contact area between the plug blades and the receptacle (good for audio) and 2) Special composition plastics for the receptacle body to withstand chemicals (not helpful for audio). There may be others, but I don't think they are important in this context.

The main thing that differentiates good audio receptacles from standard or even hospital grade versions is the type of metals used in the wipes, the terminals, and the backplate. Also, using certain plastic composites for the receptacle body provides vibration reduction.

Both PS Audio and Oyaide use beryllium copper base metals, PBT bodies, and multiple plating and polishing steps. Oyaide makes 4 different receptacles, each plating the beryllium copper with different combinations of metals (gold, platinum, rhodium, beryllium) to provide compatibitility to the different metals used in the male plugs of different power cords and also to tailor the resulting sound to your taste.

It escapes me why a lot of folks have so much trouble accepting that improving the quality of the incoming AC flow will make significant differences in the performance of their equipment. After all, the only function of audio equipment is to convert random electrons coming from the AC line to accurate electrical waveforms to send to your speakers.

One of the most common challenges to the benefits of power cords and other power enhancements is that the power coming in from the outdoor transformer to your fuse box and then through low grade-wiring to the receptacles is so poor, so how can 'the last five or six feet" make any difference?

It was explained to me one time that the flow of electrons coming from the public utility can be compared to water molecules in a raging whitewater river with a lot of turbulence. If you were to insert a smooth tube at the base of the river that was sufficiently long, the turbulence of the water would dissipate over the lenght of the this tube to the point where it would exit the tube flowing calmly (thus calming the movement of the water molecules) into a pool at the bottom. Good power cord designs do the same to electrons, reducing their agitated state and uncontrolled energy from the wall to the component and therfore providing a more friendly AC signal to the power supply. Audio receptacles optimize the conversion of electrons from the metallurgy of the house wiring (usually Romex) to the metallurgy that is optimally compatible to the metals in the cords plugs.

All I know for sure is that all this makes a huge improvement in the sound of my system.

Best,
Dave

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