Update: The grounding cable arrived today but does not fix the hum. On top of that I can't reproduce my temp fix using an RCA lead as a grounding cable anymore. Something is amiss. Back to square one.
@damien It's clear that the 96 is too much of a mixer for you. Perhaps you'd be safer with the training wheels of the Pioneer DJ range, and leave the 96 to the big boys like @astromech and myself.
Hercules DJStarter Kit - Hercules

Hercules DJStarter Kit is an easy-to-carry and easy-to-install solution includes the Hercules DJControl Starlight controller, Hercules DJMonitor 32 speakers, HDP DJ M40.2 headphones and Serato DJ Lite.

Hercules
@astromech @damien People will still be able to see you using your pro level lollipop even if they can't see your gear.
@mark @astromech and I'm sure you're suggesting I should send you my 96 to make sure I don't get hurt?
@damien @astromech Not at all. You should keep it so that you have something to aspire to, perhaps to update your webcam stand.
@mark @damien Jesus. Someone's off the Christmas card list.