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hfcobra t1_j9c9845 wrote

XLR is S tier because twice the power double the fun.

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blorg t1_j9din6c wrote

It's typically double the voltage, which is four times the power, unless there is some other current limit in the amp (which there often is).

4.4 (top) and 2.5 (bottom) in this picture are also balanced and double voltage.

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hfcobra t1_j9dljs4 wrote

W=VxA

Not sure where you get 4W=2VxA

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blorg t1_j9dw8zp wrote

For a constant resistance as voltage increases current also increases proportionally (Ohm's law, I=V/R).

As current also increases proportionally, the increase in power is the square of the voltage increase.

It's also the square of the current increase, you can use that either.

But you can't have voltage increase with no current increase, they are linked. Unless there is a proportionate change in resistance with increasing voltage, which there isn't in headphones.

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Shredder-sama t1_j9g8yw8 wrote

P=V^2 /R -> V(x2)^2 /R(no change) you get a P(x4) change.

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