Snouse Blackbox 2/Pro Mod


New member
Happy to open it up! I don't have much experience with tracing (or drawing my own circuit diagrams), but I know my way around a pedal decently well so I'll give it a go and see if I can get anything from it.


New member
Here are some pictures :

Parts are (top row)
film cap 1L1 103 || 1L1 103 || 1L1 103 || blue mlcc with "221" || 2.2u 50v electro on top, 100u 25v on bottomr || 1N4001 ||10u 63v electro on top, 100u 25v on bottom || blue mlcc with "100" || 1L1 103 || 1L1 103 || 1L1 103

Row below pots:
red film cap u: 104 || U: 104 || 2N5457 || TL072 || 2n5457 || U: 104 || electro cap soldered on the bottom

There's also a resistor running from the board to the positive lug of the DC Jack (CLR?)


Well-known member
Thanks. Looks like it uses the 27K/33K/10pf setup which is from the earliest bb circuit.
They also added a JFET, which isn't in the BB. I wonder if this is an input or output buffer? gain stage?


New member
Please, let’s get this going. I’m on the list but I’d love to have my own build with a soft switch and top jacks. I remember when Snouse was giving them away along with his Blue Line. I had an early double Black Box that I sold for cheap. I definitely think the mods will be helpful as the standard version had some drawbacks like the original.