I have a ddj-sz and I will try running serato on 1and 2 off of my mac. Then I have a PC that runs serato exclusively and route a monitor thru 1 and master thru 4. (Wish the SZ had an fx loop thru like the old djm 800 had on the fx. That would just be insane.) If the beatkeeper is pretty straight that would be all you need. Would have bought it already but I have 6 payments left at Zzounds for my EKX system and the wifes car transmission went out$$$$$. Did I mention Christmas is around the corner. lol