I'm a super noob at this, but my friend gave me a Integra 6.2 reciever with a 5.1 speaker set up. My issue is that I can ONLY GET STEREO SOUND AND ONLY OUT OF THE LEFT AND RIGHT SPEAKERS. My sub simply will not channel anything through it. We have all the speakers connected properly. We have the sub connected to the deticated RCA output on the reciever and into the proper intput as labeled by the sub instructions. All inputs from the cable box,xbox, etc, are plugged into the corresponding rca connections. However the only optiion that works is stereo DIRECT. and only plays through the L/R speakers and no sub. all other options do not work. Can anyone shead some light on this for me? thanks so much!!