Help a noob out 
pleaseeee
I dj purely for fun on my own. i am learning to beatmatch and all that jazz.
I would like to run Traktor with my Numark ndx900’s and pioneer djm-250. The pioneer djm-250 does not have a sound card so i need to buy one in order to play songs off of my computer. right? please if i am wrong someone direct me because i don’t want to waste my money, i really enjoy spinning on the flash drive but id prefer to have access to more songs.
what the fuck do i buy?
NDX900’s have a soundcard built in.
so all i need to do is connect the two usb’s to the computer and run traktor? i wonder what i’m doing wrong. i have the tsp cd’s so if those are in the cdj’s and traktor is running it should work?
You just need this. http://www.bhphotovideo.com/bnh/controller/home?O=&sku=855190&is=REG&A=details&Q= Or an Audio 8 or 10.
You do not need to buy this. Or anything else.
Open up Audio MIDI Setup on your Macbook and aggregate your NDXs into one device. Then use the aggregate as your Audio Device in Traktor.
Numark provide a detailed set of instructions on their website:
Those cd’s are useless unless you have a traktor certified soundcard or mixer to use them with. Don’t ask about setting up dvs here again until you have either.
makar1 is right on the aggregate audio device, and more importantly you don’t NEED to run a DVS setup because the NDX900s support MIDI control. To use them with Traktor you just need to follow this guide here: