Safe and Easy Backup System

[ajl]

Hello everyone ,

I have only recently discovered this incredibly helpful forum.
Although still a student, (currently in my final year studying for a degree in music) I have become very interested in location recording. The gigs I've done so far have ranged from small piano and voice concerts to symphony orchestras.
Being part of a music conservatory, subjects and opportunities to record are not in short supply!

I have managed to build up a simple rig based around a MacBook Pro (running Logic) and an Ensemble. I'm also fortunate enough to have access to a wealth of microphones, including a Soundfield.
Now to my question, what would be a safe and simple way to hook up a backup recorder to the ensemble. I have been playing about with a MX2424 , routing each of the ensemble inputs to the outputs, which seems to work to a point. I am not overly keen on having the signal running through multiple converters.
Would getting a ADAT card for the MX24 be a good option, or is there a cheaper way of doing this that I am completely overlooking?

Thank you

Andrew