Bose 3·2·1 II System "321 output pcm 2" Questions

321 display. I also have my cable box connected to my bose system via optical digital cable...and a digital coaxel cable from my dvr to my bose. Change that output setting on my cable box took care of

321 series II systems. There also is no audio output on the media center to send to another amp either. As you may know, the 2 speakers are actually 4 speakers. Each small speaker array has 2 drivers.