you should be able to just switch your audio preferences in logic to have your SL box as the input, create an audio track and record. I've been doing it like that to record records into logic so I'd imagine it would work for a set as well, just make sure you're getting the master out mix from serato..
I just got a new vinyl pair of the serato manifesto series. I set up mixxx to work with them. The playback works, but there is a constant beep noise. It is audible even if the cross-fader is switch to zero. The only thing that solves it is stopping my turntable.
Is there anybody who encountered the same problem?