I salvaged a motorized pot from a stereo receiver which I want to use between a CD player and a power amplifier (both devices sit on the same shelf at my workplace). Currently, the line out jacks feed a volume pot through 30+ feet of (cheap) cable, and then another 30+ foot run back to the amp. Nobody at work thinks there is anything wrong with the sound (except for the ground hum), but I was nonetheless able to convince my boss to let me "have at" the sound system.
I like the motorized pot idea because the audio cables will be very short, and noisy environments shouldn't be a problem when driving the motor remotely over long cables (plus multiple control points are possible).
My question concerns the pot's value which is 50k, versus what the vast majority of the audio circuits I've found use, which is 10k. In How do I determine if I can safely substitute potentiometers?, general guidelines are given and I seem to meet them all. All except for: try to stay within a factor of 2 (or 1/2) from the ideal. But this doesn't satisfy; I'm after a more definite answer for my specific application. Then, in What potentiometer should I choose?, I was dismayed to read, "As a rule of thumb, for audio, pots generally range from a resistance of about 10K to around 1 megohm." (I thought we were talking 10k to 50k?)
Since I've found 10k to be the "consensus" value, and 50k to be the "exception" value, it seems reasonable (to me) to make this post. So I ask, "What's the deal with the 10k and the 50k audio pots?" I guess my question comes down to one of degree: how much difference will this make, and in what circumstances? Sound quality is my top priority. If there is a trade-off, I don't want to give up more than 2% to 5%.