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Nitpicky tone question: 500k guitar volume pot turned down to 8ish = 250k pot? Y/N?


hangwire

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?

 

would you say just trimming down the volume on a 500k volume pot is the same and replacing it with a 250k pot for a single coil guitar? If yes or no, please include reason why... and if it matters in a band mix or live.

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No, it's not the same thing.

single_coil_one_vol.jpg

 

As you can see the pickup (which has a DC resistance) is wired in parallel with the entire pot (the leads connect to the outside lugs of the pot). So it always sees the total value of the pot regardless of where the wiper is. This is a very simplistic explanation mind you.

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No. What you're saying would be true of a tone control, however -- there is no sonic difference between the tone control down a little or using a lower value pot. And actually there is very little difference between running the tone at 250K with 500K volume and 500K tone with 250K volume. The effect of the tone is primarily resistance at higher settings because the cap is closer to a short than 250K, especially at high frequencies which is where 250K makes the difference anyway.

 

The loading a of a 250K volume can be simulated by putting 500K in parallel with the 500K volume (outer legs) although there is a tad more noise at middle settings, you don't get that advantage of the lower pot.

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nitpicky is a racist term hangwire.

 

With all due respect, I believe you're mistaken. The term nitpicky derives from picking nits (head lice); removing a small imperfection, a "insignificant detail."

 

Here's the definition:

 

Adjective

 

nitpicky (comparative nitpickier, superlative nitpickiest)

 

finicky; overly critical; concerned with insignificant details.

 

Source.

 

I've never heard of the word having any racist origin or overtones prior to now. :idk:

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It's not the same. SonicVI has it. The pickup is wired in parallel with the volume pot. The load caused by the total resistance of the pot affects the peak resonant frequency of the pickup, which is why a 500k pot sounds brighter than a 250k pot. When you turn a 500k volume pot down to 250k, you are adding 250k of resistance in series with the output which reacts with cable capacitance and kills high frequencies. A 250k volume pot on full will load the pickup more than a 500k pot (giving a lower peak resonanct frequency), but will lack any series resistance and have a higher signal-to-noise ratio.

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