Using Log pots for Tone? - Jemsite
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post #1 of 6 (permalink) Old 03-28-2010, 08:47 PM Thread Starter
 
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Question Using Log pots for Tone?

If I use a Log (aka audio or A type) pot for the tone control, what effect does this have?

(Guessing someone on here must have used Logs pots for tone?)
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post #2 of 6 (permalink) Old 04-21-2010, 12:12 PM
 
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Re: Using Log pots for Tone?

Hi,

using a log pot, dosn't change nothing to the general tone
of the guitar. The only change is about the behavior on tone
modification by the pot. With log pots, you have lot of tone
change when close and low tone change when open.
The conseguence is less control. By linear pot it's simple
to control tone variations.
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post #3 of 6 (permalink) Old 04-21-2010, 12:59 PM
 
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Re: Using Log pots for Tone?

I was always under the impression that linear taper gave a very quick roll-off of tone which was hard to control, but log/audio taper pots spread the change out over the whole of the pot's range, so you get more control over adjustment.
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post #4 of 6 (permalink) Old 04-21-2010, 01:40 PM
 
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Re: Using Log pots for Tone?

Quote:
Originally Posted by skins345669 View Post
I was always under the impression that linear taper gave a very quick roll-off of tone which was hard to control, but log/audio taper pots spread the change out over the whole of the pot's range, so you get more control over adjustment.
It's the inverse. With a log pot, you have a quick roll off of high frequencies at the end of the course, so less control. The use of log pots are for the volume because our ears have a logaritmic behavior in volume intensity. In an eq section it's better to have a linear behavior for better control.

There are a lot of questions about what's the best for tone/volume, log or linear.
I think that it's personal. Someone prefer one as the other.
With a log pot you have more control in the first 50% of the course, but
drammatical roll off after. I think that if you need few changes in tone
and don't need to darken it too much, the log is preferible.
For example, in my semi-hollow body, i prefer a linear pot because i need
an accurate control in the high cut off when need jazzy warm sound (and that it's possible, because of cap i mounted, around 50% of the pot course).
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post #5 of 6 (permalink) Old 04-21-2010, 06:13 PM
 
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Re: Using Log pots for Tone?

Ahh okay. Yeah I got that about the log for volume, and I don't like my tone too dark, so log works great for me. Thanks for that though!
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post #6 of 6 (permalink) Old 04-22-2010, 07:54 AM
 
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Re: Using Log pots for Tone?

Just to chip in, from the schematics, Ibanez use linear for volume and log for tone on the Jems! I haven't verified this is not an error on the diagrams, but I was amazed it wasn't the other way round.
Jim

Last edited by Vim Fuego; 04-22-2010 at 07:55 AM. Reason: clarification
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