need more middle frequency from Blackface module

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ilearn
RM20
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need more middle frequency from Blackface module

Post by ilearn » Thu Jun 16, 2016 12:25 am

My Blackface mod has good high and bass, but not much of middle.
It came with couple of orange drop caps(I got an used one).
They looked the stock values according to the component spreadsheet.

If anyone can give me an guidance how to increase middle, I'd appreciate it.
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galao
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Post by galao » Wed Jun 29, 2016 9:28 am

There are two things you can do.
1. Decrease the value of R31 to 67k or lower.
2. Increase the value of the mid pot to 50k.
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CrazyNutz
RM100
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Joined: Tue Aug 02, 2016 7:25 am
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Post by CrazyNutz » Wed Aug 03, 2016 12:20 am

Decreasing r31 would be super easy. All you have to do is piggy back another resistor on to it. Just use a parallel resistor calculator to find the correct value.

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