Rear wall treatment in a control/live room

Hello I'm starting the building of my new studio, have done some plans. The space is not huge, 60meters square so i think i won't do separate live and control rooms, just one main room for mixing AND recording, and 2 smaller booths, one for drums and one for vocals for instance. Here's a plan of the studio with the new double walls. My question is : how should i treat the rear wall (down side of the plan), which is not flat as it is, there's many corners.. I don't want to lose to much space of course. But i guess it needs some treatment because the console and speakers will be close to that wall. Any advise welcome. Thanks Joakim

Hi Joakim, and welcome. The reason you are getting so few answers is probably because you need to read this first: viewtopic.php?f=17&t=7572 ... and also your diagram is in French! Plus, there doesn't seem to be any layout at all that is usable as a control room. - Stuart -