Thanks Mac.

I have found that the RC-50 has a master tempo setting for each phrase (loop) that allows you to enter the original tempo of the wave file.

The actual loop tempo is locked to the playback.

rharv:
Thanks for the link. I'll check out the pdf pamphlet....
And, yes, this unit is awesome. I am using it with a live jazz trio to fill out the sound. Being able to arrange on the fly is awesome. The multiple output options are a real plus too.