You could track each track individually (you probably want the mutual cut-off stuff like hi-hats together).
Taking individual outputs into an 8-in interface would also work, but would obviously cost.
…or you could wait a few months for Overbridge, which should let you use Rtym as a VSTi - similar to Virus Ti.
You don’t have to use MIDI since the device can use MIDI over USB. My experience with timing when using MIDI over USB isn’t great though. I prefer to use my PCIe based RME Multiface units’ MIDI ports, where the timing is surprisingly good.
You have the option of triggering sounds from your DAW or using the Rytm’s on-board sequencer. Potentially a combination of the two if you really want.
To expand on this a little, you could record each track separately (or a pair of tracks) by muting the other tracks. For instance, if you want to record the kick and snare at the same time, you could run those two tracks into your 2-input audio interface (which is what I have). Then, you could record the other individual tracks, or pairs of tracks, until you have them all recorded.
I’m not an expert on using a DAW (I record into Ableton), but in my experience, things can get a little tricky on the DAW once you try to put everything together. You may find that the loops of each track aren’t perfectly synced, so you may have to nudge the loop a little bit forward or backward to get them perfect.
At least that’s what happened to me when I was recording invidual drum tracks from my Analog Four. But again, maybe if I knew more about how to use Ableton (or the A4, for that matter), it wouldn’t have happened.
Overbridge, when it arrives, should solve this problem since you can record all tracks simultaneously.
Thanks for this answer, what do you mean by : triggering sounds from your DAW using the on-board sequencer?
I struggle with finding a good workflow. What I do now is sync the clock of the RYTM (as slave) to logic. When I hit record in my DAW the sequencer of the rytm starts running. This works.
Ideally, It would record the audio but also the midi pattern for easy editing from my DAW at a later stage. This would also allow me to drum in some fills (as midi sequences using my electronic drum kit) and incorporate them in my RYTM sequences.
I really don’t understand why such an elaborate / expensive workhorse of a machine doesn’t record midi patterns. It a shame really. Sometimes I wonder if I shouldnt just go back to good ol’ EXS24 in logic loaded with the same samples.