I'm looking to buy a new system using either my Apple TV or a Airport Express as a source. My question is this, can you use the optical out of either of these sources whilst still using the analog signal to provide a volume control. Ideally, I would get the quality of the optical link with the convenience of being able to control the volume, and possibly the amp's on/off state by using the line-out volume from the source. In this way I can use an iPhone to fully control the stereo.
Thanks,
Robert