Hi there! This may be a stupid question, but I need some help. I need an audio interface to DJ with Rekordbox Dj software so I can route 4 decks from rekordbox to my external analog 4-stereo-channel dj mixer. I'm thinking about buying a “Behringer UMC1820” audio interface. Would that do? Thanks. PD. I don't want to use timecode vinyl or cd, just mixing with 4 rekordbox decks on my analog external dj mixer.