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In Reply to: RE: "work at lower values...?" posted by vinnie2 on February 17, 2017 at 08:39:28
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.
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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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