What's this stuff on the back of a PS Audio Outlet


Anybody know what the function of these do-dads could be? I swapped outlets in a PS Ultimate Outlet 20amp HO unit and was surprised by this stuff.

http://cgim.audiogon.com/i/vs/i/f/1064163571.jpg

Thanks
Marty
marty9876
It was Paul McGowan from PS Audio that responded that they were capacitors, but his response was rather brief. You might want to ask him at that forum what purpose they serve.
"No, it will only remove the noise reduction properties. " was the answer. Really was my only concern.

Well the previous posters were correct, the unit sounds better with the Cryo Hubble(Porter Port). Kinda funny, I installed the Porter Ports in the "wall"(before the PS Audio Ultimate Outlet and in the wall directly before the amp) and noticed no real improvement. Noticed a improvement when I swapped out the outlet in the PS Audio Ultimate Outlet.

Now I guess I can head down to Radio Shack and get these parts to modify the Porter Ports. Burn down the house and get sued by PS Audio....:)

Thanks
Marty