Bass boost for Tube Sreamer?

[Tone-Analyst]

Hi, it seems like when I search for bass boost examples, I only get instructions to mod the pedal to use with an actual bass-guitar. I tried a Bad Monkey and Green Rihno and really liked the bass boost feature. Any examples would be appreciated. (For normal guitar)

[willienillie]

http://www.geofex.com/Article_Folders/TStech/tsxfram.htm

[patrick398]

Madbean Deadringer Jr, based on the Fulldrive 2 which is itself a tubescreamer clone. I really like the added bass control in this circuit.