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- This topic has 5 replies, 3 voices, and was last updated 3 weeks, 1 day ago by
MathU41.
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April 22, 2026 at 8:10 pm #38941
MathU41
ParticipantUnless I’m having a derp moment and missing it, I’m needing some clarification for my head.
As illustrated, they seem to be set up as on-off, with a note to test the capacitor on M2.However, especially with a build geared toward my bass in mind, would there be any actual benefit to using on-off-on switches?
IE, setting M1 as a 100n/off/jumper, and M2 to 1n/off/10n, or similar–or even wider ranges for the bass?On top of a Buff N Blend, of course.
April 22, 2026 at 10:52 pm #38942
BillyModeratorIt specifies on/on DPDT switches and looks like the switch puts a capacitor in parallel with C1 and C2
So switching C1 to10n will allow more highs then adding the 100n in parallel on the switch will give you 110n close to the stock value
Same with C2 adding from 1 to 10n in parallel will roll off more highs
April 23, 2026 at 11:43 am #38943MathU41
ParticipantThanks for clearing that up.
So essentially there wouldn’t really be any benefit for using an on-off-on to get an extra step.April 24, 2026 at 8:34 pm #38950MathU41
ParticipantHmm.
And for the tone control bypass mod… Between the tone control and the mid scoop mod, wouldn’t those be able to at least be close to dialing in a flat tone curve? Or at least mitigate the harshest of the circuit’s effect on it?April 25, 2026 at 7:37 pm #38955
brdParticipantIf you are looking to modify the mid scoop, my suggestion for the least extra components is to use the following values in the tone stack
C10 3n3
C11 10n
R18 39K
R20 39K
Then you can use a DPDT on-off-on switch with 2 caps as shown below to get a mid scoop, flat response or mid boost.

This is borrowed from tagboardeffects for a Hizumitas work alike
You can plug the values into the BMP tone stack calculator on TSC in the web to see the effects. The caps will parallel C10 so you will have effective values of 3.3nf, 8nf and 13.3nf for C10
I hope that helps
April 26, 2026 at 6:48 pm #38962MathU41
ParticipantI was just expecting to find a way to make it work better with my bass, and blend into a mix a little better.
Giving me more options is like a voucher for a candy store. 😀 -
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