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Temp "Time Format" issue Fix in Discussions

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Author Topic: Mp1 chorus trim pot  (Read 643 times)

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gb

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Mp1 chorus trim pot
« on: Time Format »

Hi All.

Hows things??..long time.. Im back on the Mp1 bandwagon after seeing some recent MP1 demos pop up.. I pulled out my mp1 and noticed it had no chorus. After google research i saw a YouTube with a faulty trim pot. I looked inside and gave it a tap and nothing. I know you are not supposed to touch it but its not working. I found adjusting it to a certain spot engaged the chorus (around 11 oclock)..anything outside of that there was nothing.

Is that normal.  Reason why i ask is another mp1 unit i have seems to have a bit better chorus on same setting so im wondering if there is an issue with my main mp1.

Anyway good to be back.

I still have the 3tm kit from MJMP from about 3 or so years ago. I think ill only use the noise mod portion of this and update my mp1. Its a bit noisey. But before i do that to my main unit i want to make sure theres no underlining issue with chorus.

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MarshallJMP

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Re: Mp1 chorus trim pot
« Reply #1 on: Time Format »

The 11 o'clock setting is correct. This pot adjusts the bias of the BBD chip. It has to be set correct. And usually with MP-1 it's around this setting.

There can be some differences in the chorus sounds. I had MP-1's with amazing chorus sounds and some were "dull" sounding.
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gb

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Re: Mp1 chorus trim pot
« Reply #2 on: Time Format »

Ok good to know thank you. I have another question but ill start a new thread
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gb

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Re: Mp1 chorus trim pot
« Reply #3 on: Time Format »

Factory patch 9... clean chorus.. just makes me play DreamWarriors  intro over and over.. in stereo to 2 quadboxes just sounds fantastic. The ada mp1 will always be my core unit. Its the sound of the 80s where i belong
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