Low volume

Hello,

A noob question......

I have a DVS setup using 2 turntables and a DJM-250 mk2 mixer plugged via USB to my MacBook Pro running Rekordbox.

I have the levels set to orange just above 0 and the master set to around 2 o clock but the volume coming out of the speakers isn't that loud.

Is there a way to increase the volume through the speakers whilst have the levels set as above?

Thanks,

Mark