Bass response of your opamp gain stage and why is the timmy awesome

Taking two examples, some tend to describe the tube screamer as too "tight", and the very opposite for the mostortion which is often decribed as too "messy", the bass control of the Timmy allows to adjust the low end being clipped, adjusting that "tightness", add this to any opamp gain stage feedback loop for additional control over the thickness of your saturation.
Here is a graph showing the comparison between the two examples above and different settings of the Timmy bass control:
1705574393005.png

The topology I am talking about (in red for the original TS type of high pass filter; in green the addition from the Timmy - do not pay attention to the values, this was for a specific project):
1705574713484.png


as a bonus, here is a table I made showing the cutoff for some models:
ModelC5R9 (kΩ)HPF f (Hz)
Tube Screamer (Fixed)47nF
4.7​
720​
BOSS DS1 (at max gain)470nF
4.7​
72​
BOSS DS1 (at min gain)470nF
104.7​
3​
Ibanez MT10 (Fixed)220nF
2.7​
268​
Marshall Guvnor (Fixed)100nF
2.2​
723​
Digitech Bad Monkey (Fixed)220nF
1​
723​
MXR Micro Amp (at max gain)4.7uF
2.7​
13​
MXR Disto+ (at min gain)47nF
1004.7​
3​
MXR Disto+ (at max gain)47nF
4.7​
720​

Hope you enjoy tweaking this!
Thanks,
Thomas
 
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