Kadundra tone knob modification

[Yalesmith]

Howdy. I just built this and probly my favorite drive so far, well atleast tied with the angry Andy…. The only issue is it is way to bassy and flabby sounding. If I turn the bass down and treble up on my amp and crank the tone I get great sound on my bridge pickup…. But anything else is unusable….. any suggestions?

Thanks!!

 

[Yalesmith]

Looking at the schematic, I think it’s a low pass filter? Any suggestion in values?

Thanks

 

[coltonius]

Check this out:

RC and RL Passive Filter Calculator | DigiKey Electronics

Calculate the -3dB cutoff frequency of RC and RL circuits for both Low and High Pass filters using DigiKey’s passive filter calculator.

www.digikey.com

Edit to add: Here are a few other places where you could take out some bass:

Try reducing R7. That LPF network (R7/C5) is where the Timmy/Jan Ray/OD11 have a Treble pot. Lowering the value will reduce the treble cut, or “turn up the treble”.

You could reduce C4 as well. Start with 47n, but reference the Jan Ray or similar schematic for values used.