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150.148.14.3
In Reply to: RE: +1 posted by vinnie2 on February 16, 2017 at 14:08:32
I am not sure what you mean. Do you mean to say that where the circuit may call for 0.22uF, one could get away with a lower value of SSG and achieve the same cut-off (in the case of a coupling capacitor)? I always assume that you cannot fool with the math. Microfarads is microfarads.
Follow Ups:
That's what I used to think until I did some experimenting. I have always maintained that the numbers don't always tell the whole story, and I would rather trust my ears. As long as you use the proper voltage rating you won't hurt a thing by trying smaller microfarad values for the SSG's. Give it a try, you might be pleasantly surprised. I know I was.
Edits: 02/17/17
Of course you won't hurt anything, but inevitably you are changing the -3db point. Whether you can hear the difference or not is quite another subjective issue. However, the difference is there for sure. Once in a while, I have found it possible to get away with a lower value coupling capacitor where it is also possible to double the value of the resistor that goes to ground, in a coupling mode. In THAT case, you don't change the -3db point. IOW, 0.22uF with a 500K resister is ~equal to 0.1uF with a 1M resistor, in terms of the -3db point.
nt
I did allow that you might not readily hear the difference between a 2 Hz cut-off frequency in the bass and a 4-Hz cut-off, assuming you replaced a 0.22uF capacitor that was giving you the low cut-off point with an 0.1uF value. I am only insisting on the math, that one shouldn't kid oneself with the idea that, because you do not hear a difference, there IS no difference.
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