Tried all of these things. Unit works completely fine with traktor duo, mentioned in the original post.

Hi,

I bought traktor scratch duo a bit less than a year ago.

It comes with the audio 4 dj box. Great little unit. 2 stereo inputs, 2 stereo outputs.

My problem is the audio that comes out of it is choppy, laggy, clippy and overall bad.

Using a macbook pro unibody
tested on : native macOS ...

when will the next competition be? I would really like to join the next one!