I was checking into options, and it looked like the AC LC6i may do the trick. I don't need any more channels and this has internal suming (which my LC2i doesn't). On the install manual (Figure 5) show exactly how our Bose system would need to be connected (when replacing fronts & sub):
Line Output Converter - LC6i
**Edit: One step better I think will be the LC7i. This is the same as the LC6i, but adds the AccuBass feature found in my LC2i:
http://www.audiocontrol.com/t34/1761...-AccuBASS.html