DDJ RB - Macbook Pro, only output on macbook, not speakers

Hi,
I got the DDJ RB yesterday and started messing around. I can't get the master output to go to my connected speakers.

I installed the drivers for the RB, also checked at my security tab, no message popping up there about drivers not being able to install.

I really don't know what else to try.

Thanks in advance.

Roy