you have to think about how the DJM600 works.

it has

:: A time select knob/switches

:: an amount

:: is the o/p pre or post?

i think im right in saying that when you select master as the effect channel it becomes pre fader, and when you select a channel it becomes post fader.

when the sound is delayed on 1/2 bar (i think thats what you are after) it turns the sound choppy by having a highish mix level of the effect but with very little feedback (otherwise the mix would become extremely harsh) its like the sound is made up of both the original signal and the delyed one, but in equal measure...

ill think of some more stuff later...