Phrazemaster
Well-known member
Hi gang, I have a wonder about capacitor voltage ratings in a mic. I'm building an M49 PTP and there are four .01uF caps. I noticed on Poctop's build he uses four 400V rated caps at .01uF.
Mightn't the voltage rating affect capacitance/performance?
I've read the rule of thumb is to use caps at 2/3 their rated voltage for best performance. And that to use an overly large cap could adversely affect capacitance, and the performance of same.
So is this silly to worry about, or should I find .01uF caps that are about 3/2 higher than the circuit section they are in?
In the M49, that means two of the .01uF caps would be at 75V, and the other 2, not sure, but certainly nowhere near the 400V.
I guess ultimately, does it matter, and will this affect the sound? I even read on the Neumann forum that they were sure to pick capacitors with the right value and "appropriate voltage ratings."
Thanks for your thoughts.
Mike
Mightn't the voltage rating affect capacitance/performance?
I've read the rule of thumb is to use caps at 2/3 their rated voltage for best performance. And that to use an overly large cap could adversely affect capacitance, and the performance of same.
So is this silly to worry about, or should I find .01uF caps that are about 3/2 higher than the circuit section they are in?
In the M49, that means two of the .01uF caps would be at 75V, and the other 2, not sure, but certainly nowhere near the 400V.
I guess ultimately, does it matter, and will this affect the sound? I even read on the Neumann forum that they were sure to pick capacitors with the right value and "appropriate voltage ratings."
Thanks for your thoughts.
Mike