Leds mods

Discuss mods, hacks, tweaks, etc.
  • Has anyone have a (kind of) loud hum when the hi hat filter is in any position but off?

    It's not very distinguishable when two or three other sounds are playing simultaneously but it's certainly loud enough when I have all but the hi-hat muted and the filter on.

    Nava is otherwise fully working and the trimmers are set correctly (I'm on 3.2 so no resonance adjust)
    When the filter is off the hum dissapears completely..it also goes away when I set the freq cutoff to zero.
    Is this normal?

    ***
    I didn't bother matching the filter diodes or anything else really so I initially thought that what's you get when being lazy and it should a minor leakage or mismatch of some sort but it's pretty pronounced and I'm starting to think there's a fault somewhere.