Spent lots of time and money on various cables to work this out!
Hardware
Monotribe "output"
= "thickest"/standard audio plug
--> socket 1 or 2 on front left of A.Box
A.Box
USB type 1
--> USB type 2 in MacBook
Speakers/Monitors
= "thickest"/standard audio plug
--> A.Box - back on the right of box "phones"
Software
Ableton Live 8
to be continued