Now thoose are good questions Muse chip is stated that introduce distortion see picture, passive pots THD is 0%.
Also pot doesn't add noise floor "uV"
Regards
Vishay P11A2Q0EBSZ00103KA
Smaller physical size, will likely not track as well as RK27, 4mm shaft, more difficult to source attractive knobs, more expensive than RK27.
At this point the Alps RK27 really is the best value. I've used Alps RK097 series to good effect, and they are less expensive.
I may be wrong but it is my understanding that any resistance, even passive, adds to noise floor. Someone knowledgeable please advise.
Also pot doesn't add noise floor "uV"
What about the Johnson noise ?
I may be wrong but it is my understanding that any resistance, even passive, adds to noise floor.
It does.
https://en.wikipedia.org/wiki/Johnson–Nyquist_noise
If you put a probe on resistor the only way to appear uV is magnetic fields around the resistor it isn't poweeed by anything..
There is a reason they call it thermal noise…it isn't poweeed by anything..
If you put a probe on resistor the only way to appear uV is magnetic fields around the resistor it isn't powered by anything..
We are all in the heat bath of the universe (average less than 3K, but much higher here on earth).
Not only is there thermal noise any time the part is above 0K (which does not exist),
but there is also the thermoelectric effect, which converts the temperature differences of two adjoining materials to voltages.
I am also learning here, I am not going at that levels of deep, because what you are saying happens in all electronic circuits the stated noise floor on the muse chip should be way higher than in a Pot.We are all in the heat bath of the universe (average less than 3K, but much higher here on earth).
Not only is there thermal noise any time the part is above 0K (which does not exist),
but there is also the thermoelectric effect, which converts the temperature differences of two adjoining materials to voltages.
I am also learning here, I am not going at that levels of deep, because what you are saying happens in all electronic circuits the stated noise floor on the muse chip should be way higher than in a Pot.
Depends on the impedance levels. Even 250k pots are commonly used in tube circuits, by necessity.
There is in any datasheet of a resistor the noise floor mentioned?
This should do. Especially see figure 6.
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Hello,
I wanted to left here a bit of time to thank to the People who contributed on knowledge here discussed,
and also share some personal experience I've been working with amps in which use RK27, this was the last
one I replaced this one got a problem on the shaft which turned 360 degrees instead of 300 but I have
replaced more than one in which the tip of the wipers gets black, a mix of dust with internal grease and
in that case noise was present due to bad contatcs mainly my quest was for try to find a sealed option to
prevent this because RK27 is an open unit.
Regards
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