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Will a small cap value difference be audible?
Will a small cap value difference be audible?
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Old 8th February 2012, 06:31 PM   #1
jb0194 is offline jb0194  United States
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Default Will a small cap value difference be audible?

I am using a 3rd order filter specifying a 39uF midrange circuit cap. I can parallel 2% tolerance caps to a value of 38.2uF. Will the deviation from specified value likely be audible?

Thanks in advance.
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Old 8th February 2012, 06:39 PM   #2
weltersys is offline weltersys  United States
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Unless the circuit is critically tuned, that small of a deviation will not be audible.
That said, 38-39uF may not actually be the value needed for an acoustical 3rd order filter, having some other values to experiment with is always a good idea.
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Old 8th February 2012, 06:39 PM   #3
dumptruck is offline dumptruck  United States
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Well, I guess that would be a worst case of 37.44uF, which is a 4% difference from the specified value. More likely, something like 2.1%. I'm gonna say no.
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