I don't think you have enough in-puts & out-puts on the mixvibes u46 mk2 to do this
you need a sound card that has 6 in-puts & 6 out-puts
1...you plug a set of RCA cables from the mixers outputs { rec out put } to the spear inputs on your sound card { in-put 5 & 6 }
2...open a third deck in mixvibes
3...drag & drop the audio in-puts {in-puts 5 & 6 } from the mixvibes explorer window
4....click on play button on the third deck
5...open the main volume rack...set the rec volume & click on the rec button when you are ready to rec your set
6...choose a location and make a file for you to record you set to
mix set will be recorded as a WAV file...
