FS2 supports 3 turntables.Originally Posted by Buttman
You need to buy the latest version of Traktor, and route a deck out of through the headphone output of the FS2 unit into your mixer.
Et voila!
3 Decks. You can also switch between which of the virtual turntables you want to be controlled by the timecode. Technically you could do 3 deck mixing with just one physical turntable, and just switch between the virtual decks on traktor.
Traktor 3 supports 4 turntables but the FS2 unit doesn't have enough outputs.
3 decks should be plenty enought to keep you happy though.