Hey everyone, if your module sounds quiet there are trim pots to adjust things. The top one simply adjusts white noise peak to peak voltage (mine was very quiet and so I nearly sold the module). I think the others do similar for their respective noise output, with perhaps some other effects because of the filtering involved in them.
I am surprised they don't really mention this anywhere, I would've thought it should be on this page. Would be good if anyone with more detailed info on each pot and the effect it has would post some bullet points for us all!
Check out my modular channel, it's full of droning bleepy shite