by willstone34 on 29 Sep 2011, 17:23
I have a mac book pro and recently been given the ion discover DJ, I want to configure it with my usb sound card so that i can cue using headphones out of the usb sound card and the master out of the built in headphones socket! I've tried changing the settings in the audio preferences but can only get sound out of either the usb or the built in! would i need to purchase a 2 channel external sound card to resolve this problem?