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Pot question
Pot question
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Old 19th July 2019, 04:46 PM   #1
apache23 is offline apache23
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Default Pot question

I have a M&K sub and I need to replace the low pass filter pot. It has a 10k linear taper, 2 wire one on it and my question is can I replace it with a 10k linear 3 wire one and just not use one pole? If so, does it matter which of the 2 outer poles I use? I was thinking if I got it wrong the low pass filter adjustment would just be backwards? Thanks in advance!
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Old 19th July 2019, 05:25 PM   #2
sq225917 is offline sq225917  United Kingdom
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Yup.
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Old 19th July 2019, 07:22 PM   #3
Galu is offline Galu  Scotland
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I think that means 3 yups to your 3 questions!

Depending on which outer pole you choose, clockwise rotation will either give increasing resistance or will give decreasing resistance.

Use your ohmmeter to help verify which outer pole you need.

Wire a Potentiometer As a Variable Resistor

Last edited by Galu; 19th July 2019 at 07:25 PM.
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Old 19th July 2019, 08:51 PM   #4
apache23 is offline apache23
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Awesome. I already have the pot, so all I have to do is install it. When I installed the volume pot, I installed it backwards. I guess I should have checked the resistance first. All I did was put the wires on the new one in the same spots as the old one. 2 different brands though. Thanks guys!
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Old 22nd July 2019, 03:11 AM   #5
apache23 is offline apache23
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Well, I thought it was just backwards, but I switched the 2 outer wires and same result. Also noticed that when I have all the speaker sizes set to large in my receiver settings, yo can barely hear the sub. When I set any of the 3 sizes to Small, it gets ridiculously loud and the driver moves outward probably 1/2" or more. And that's with the volume at minimum. I'm thinking the volume pot was supposed to be a linear taper pot instead of an audio taper. Anyone have any pot knowledge in this area?
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