What's nice about the DJM 1000 is that it has D link. (Funny, they call it D-Link, Roland / Edirol call it V-Link both are just fancy names for midi). You can select"V" button for the edirol V4 or select the "S1, S2, E1, E2 buttons for various midi devices. Essentially it works like a midi router. You can even select multiple devices. At least this is what I was told at NAMM by one of their reps.