If you have the direct drive turntables, audio4, mixer and the timecode then you are ready to go!!!. I used timecode in a very different way!! I installed the free edition of djay on my android tablets. I ripped the time code as mp3 and I transferred a copy on my tablets, then I connected the tablets to an audio interface with a 3.5mm to rca cable and I set up mixxx, Then I loaded the timecode on djay on my tablets and everything worked!!! using time codes on touchscreen hehe