Thanks for suggestions but I like a lot of people have a MB with only 3X Rear Panel connectors and they are devoted to just speaker outputs (ie 5:1) and leaving the only other two audio-in connectors being the front panel connector and CD in. However front panel is set aside for a microphone which leaves the CD in as the only free audio in. it is also not used in 99.9% of systems. This is probably why HQCT uses CD in.
As I don't have one of these units any chance someone could try CD in before I buy???