The CEO of our company has a huge office currently with a Bose Lifestyle system installed. All the speakers around mounted in various spots on the wall and all the wiring was ran in the walls while it was getting sheetrocked. Now, his receiver has quit and he needs a new system. Is it possible to use the current Bose speakers with a different brand receiver (Marantz, Denon)? Re-routing all the speaker wires w/in the walls is really not an option with the timeframe we were given. Is there adapters I can use or any other work arounds? Thanks!