Originally Posted by DanDan
Apple don't do Java correctly so REW won't work with multichannel interfaces.
Use the on Apple on board I/O. They are good enough for the job.
You could do half and half. Playback through your current rig, but select Inbuilt Line Input for REW. System Prefs/Sound or Audio Midi Setup.
Fuzz has none of these problems because it doesn't use Java.
Aha, I could have spent hours on the net trying to find that out. Thanks.
Yes, and I have a small Behringer mixer with a mic input with 48V I could use. I will try it out this evening.