Reply to Cdj-900 traktor or record box

Hello DJ's, I need help with traktor and the cdj 900s. What I want to do is use them to control each traktor deck, but I screwed up the output. It's in hid mode, but the audio comes out of the computer, not the mixer.

My next question is should I use record box or traktor if I want to use the computer as a library/hard drive. Is this possible? I don't really need the wave forms or features in traktor (like the PC feature on the 850). Can I use the link feature using a computer (ie record box) as the music hard drive?


My last question is what should I do for a mixer? Any opinions on the djm 850?

Thanks.