Interface?

[DJPlutrix]

SOLVED,

For any1 that wants to know how:

Denon's USB into MAC
Audio 2 DJ hooked up to DDM 4000 on normal mode
Traktor on External Mode
Headphones + speakers etc.. into DDM 4000!

[Nicky H]

But that only gives you 2 channels.

Mix internally, DDM in midi mode, and you can have all four

[DJPlutrix]

Yes that is true, but since that can be changed any time it's not really a matter, because then the cool thing is, I can use the sampler, mic, headphone and backside plugs on the mixer which is all not usable on the midi mode..