[Solved] DDJ-RR No Sound Issue

Hello!  Recently purchased a DDJ-RR as my first DJ controller.

Unfortunately, I'm having some issues getting the sound to work properly.  I am getting absolutely no output sounds.

Firmware and driver are both up-to-date.

I have my speakers connected to the master output (RCA) and also my headphones connected to the headphone jack.  Nothing on both.

The level meter (VU meter?) is not displaying anything-- no lights at all.  Rekordbox DJ is reactive to the controller and the two seems to be working fine.  I'm just not getting any sounds.

I've also attempted to use my laptop speakers, but also getting no sounds.  I presume this is so as no sound output is being indicated by the level meter on the controller.

I've double-checked all the knobs to ensure that they are in the correct settings (master level, headphone, trim, deck selection, etc).

I'm thinking I must be doing something wrong, but not sure.  Please help.