Everyone knows that most bass distortions are cheap, have no charactor and it's impossible to find the right sound due to lack of variety. But here's how you steal from the guitar players. There's a simple reason as to why guitar distortions mud out on bass, the input and output capicitors (or buffers) are calibrated to guitar's frequency response. Capacitors measure voltage in ferads, most guitar distortions have a simple .01 mf current load. Which also shows how low it goes, the frequency response can be changed how ever by changing the value and material of the capacitors. Maylar capacitors dipped in resin have better bass responce than ceramic ones, also to increase bass response and decrease treble response you want to raise the value to about .05 or even .08 mf. This also makes it so you don't have to change out power regulation. Either locate these capacitors yourself, or take the box down to a repair shoppe and have them switched. It's 50 cents if you do it yourself, and about $15 if you have a tech do it. It's a cheap easy way to get your analog guitar distortion to be a bass distortion. I have this mod done on a EH Big Muff Pi and Mongoose Fuzz. Trust me here, you don't have to settle for what companies give you.