I recently purchased this model and having read the manual and gone thru the menu choices on the head..I cant find what was supposed to be an option on this model...A feature calling itself Mulitroom function...what i thought was the old A/B speakers...does anyone know how to access this feature/function ..i just want to run 2 seperate speakers out on the deck when the tv surround isnt being used....Thank you for your time and consideration.