I just finished building this one on 1/16/24 and it has quickly become my newest favorite overdrive for bass. It can go from clean to tons of overdrive and heavy distortion. With the treble and bass controls (cut and boost) it covers a wide range of tones from flat, to a ridiculous amount of low end, to a super bright top end, and since the they are interactive it has an infinite amount of anywhere in between. I love its overdriven tone, but can be used as a clean transparent boost and can be run with a standard 9 volt power supply, or an 18 volt one for more headroom. It comes in a polished and acid etched 125B with all top jacks anodized black aluminum knobs with a relayed true bypass.
Besides #1 that I built for myself, due to time constraints, I am only going to offer ONE more of them for sale.
Quick soundclip (Fender Mustang bass with flatwounds):
