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The output impedance and the input impedance to which it is connected should be equal for maximum power transfer and highest signal to noise ratio. Line signals through balanced cables follow this design goal.
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When we talk impedance are we not talking resistance measured
in ohms.? so the higher the number the greater
the resistance.??so ideally don't we want output from the guitar to
equal to input of whatever we are plugging into. Which is why
we have all this impedance matching stuff to begin with.
Conversely shouldn't any pup of say 1 mgohm (high resistance)
be able to plug into any board if it has a lower number say 600K ohm (low resistance) Without any issues? I know thi isn't so.
I am trying to wrap my head
around why they need to be equal. When i think of resistance
i think of flow.