Seems like any equipment in a metal case is protected from rfi


Looking atFaraday cages in Wikipedia
Here's a quote:

A Faraday cage operates because an external electrical field causes the electric charges within the cage's conducting material to be distributed such that they cancel the field's effect in the cage's interior. This phenomenon is used to protect sensitive electronic equipment from external radio frequency interference (RFI). Faraday cages are also used to enclose devices that produce RFI, such as radio transmitters, to prevent their radio waves from interfering with other nearby equipment. They are also used to protect people and equipment against actual electric currents such as lightning strikes and electrostatic discharges, since the enclosing cage conducts current around the outside of the enclosed space and none passes through the interior.

Why are we trying to quiet the rfi to and from our amps, transports, etc when the metal case already does it? 

kavakat1

Showing 5 responses by kavakat1

Geoffkait

Knowledge is everything. I am prepared for the consequences. Please explain. 
Geoffkait

Knowledge is everything. I am prepared for the consequences. Please explain. 
I have heard a lot about Mu-metal lately. What is it? where do you get it? How is it applied?
So, would a sheet of mu-metal placed on the bottom of each shelf between components help? I have a NAD integrated amp, and one shelf below is my OPPO 105. Shelf is MDF
Geoffkait:

My answer would be: The temperature at which it is done. Please send asap.