I'm having trouble with my current set up. My Connect is wired to my Yahama RX475 receiver via optical cable. I get sound fine, but the set up does not use my subwoofer. When I look at the input signal on my receiver shows: PCM, 44.1KhHz, 2.0 stereo sound. Are there settings I can change to get the most out of my speakers? It doesn't seem to matter if I'm streaming Google Play Music or my own library. I just want the lows to be redirected to my sub and there seems to be no way to do that on my receiver either.