Rekordbox no Audio

I just picked up a new Pioneer Turntable and the Rekordbox software and plugged it into my Mac. I get no audio at all. I can see the Rekordbox software can "see" the music from the turntable but I can't hear it at all. Not through speakers or headphones. I can record the LP and when I play it back I can  hear it but I can't hear it to play or while recording. i'm sure its a setting somewhere but I dont know which one. Help!

I'm not using anything else, just the turntable and the computer.