Follow up question..
How does one correctly determine the proper value of a pot to use in a power amp or preamp? Bakit yung iba 50k or 20K or 100K is it also 'subjective'? If not, what is the sense of using a 100K pot with an output impedance (?) of say 500K? Why not use 250K/500k pot din? Sorry for the newbie type questions. I'd appreciate being educated here. Thanks in advance.
depende yan sa output resistance ng preceding stage, low values of ouput resistance say 1K, 20k or so is desireable for low noise. 500k is used if the preceding stage has an output resistance greater than 50K...
there is such a rule as rule of ten(10) in electronics, i am sure many knows this, that is if a resistor is in series or in parallel with another resistor, then as long as it is 10x or more in value, then for pratical purposes, this resistor is is taken as if it was not there.
the reverse of that rule is applied in the case of output resistance loaded or shunted by volume pots.