Hi,
I have an older version of this module and it's never really sounded right. All of the pots make crackling noises and pops when turned, making the module not very useful. I don't think it's a batch of bad pots as it still makes noise when controlled from a LFO when the modulation level is adjusted.
The module does seem to make the right sounds, though it does not sound as good as other people have described theirs.
Any ideas of what to check would be most welcome. (I'm no electronics expert!)
Thanks,
Trevor.