Mahayana VERY midrangey

[Loudguitarz]

I built the Mahayana. Unfortunately, I have a Hermida Zendrive to compare it with. It has a similar quality, but it’s way louder and tube screamer mid rangey, where the original one is not. Any ideas for changing the EQ (voice)? Thanks

 

[jesuscrisp]

Confirm that the red cap is actually 100p not accidentally 1n or higher.

 

[Loudguitarz]

I will check that. I’m pretty sure the bag says 100p… I mistakenly ordered 400V…

 

[jesuscrisp]

I will check that. I’m pretty sure the bag says 100p… I mistakenly ordered 400V…

Don't just check the bag, check the component.

 

[Loudguitarz]

Will do

 

[Loudguitarz]

They test between 105-110… plus they’re marked

 

[jesuscrisp]

Can you maybe post a gutshot of your original one? There have been multiple versions if I recall correctly so you may have to make a mod or 2 if your pedal sounds very different but the build is OK.

 

[music6000]

Can you confirm that the Voice & Tone pots are Correct values.
What OpAmp did you use?

 

[Loudguitarz]

I used the NE5532p… I just noticed that this build uses a B100k for the volume. I’m going to try an A100k like the original…

 

[Drayve85]

I used the NE5532p… I just noticed that this build uses a B100k for the volume. I’m going to try an A100k like the original…

That shouldn’t affect the EQ. the letters only tell you what the taper is.

 

[Loudguitarz]

So I changed the pot to an A500k and that was it!! They’re not exactly the same, but they’re not MILES apart.

 

[music6000]

So I changed the pot to an A500k and that was it!! They’re not exactly the same, but they’re not MILES apart.

This is confusing, Did you change the Volume pot to A500K (Should be100K) or Gain Pot to A500K ( Should be Linear)

 

[Loudguitarz]

Ooops sorry! I changed the volume pot to an A100k like the original. The build doc calls for a B100k