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The Entry Level Stax Thread - Page 108

post #1606 of 1607
I think u are confusing isolation and capacitance with permittivity because air has low permittivity.
post #1607 of 1607
Quote:
Originally Posted by davidsh View Post

I think u are confusing isolation and capacitance with permittivity because air has low permittivity.

 

I can honestly say i never saw Spritzer use the word permittivity. 

 

STAX, for their part, calls the cable on higher end earspeakers "low capacitance" 

 

If you compare the cables on an older Stax, like nearly any Lambda series, with the cable on an Omega, you will see that they merely moved the wires further apart. There's just a cord of rubber between them. 

 

In physics classes, there is a common experiment where the class has two smooth metal plates on stands and a capacitance meter.

 

As the plates are moved closer, the capacitance increases. The instructor asks some students to get the plates as close as they can without touching, to get the highest capacitance they can. 

 

After they mess with this for a while, the instructor stretches some common household plastic wrap around one of the plates, gets out some c-clamps, and clamps the plates together. this results in a much, much higher reading on the capacitance meter than was possible just nudging them together. 

 

The distance between conductors is a big factor in cable capacitance. 

 

 

If you wanted to make your own stax cables on a loom, you could probably use just about any insulated wire you like. 

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