Bit crusher breadboard

[SprinkleSpraycan]

I'm trying to breadboard this thing. Can anyone tell me what M1 and M2 are?

https://www.parasitstudio.se/uploads/2/4/4/9/2449159/sonic_reducer_2_doc.pdf

[anotherjim]

They are usually modification connections. IIRC, you can wire an extra jack so a volume pedal with a 1M pot can wiggle the samplerate.

[iainpunk]

if i remember correctly, its where a vactrol would connect if you wanted to go with an LFO, just don't worry about it, and ignore them if you're doing an unmodded version of the circuit.

cheers