Thank you for the information.
As to my question three: This has been the source of my problems. Trying to configure a set-up that will do all things, music (two channels), home theater (movies), and multi channel audio using the same front speakers. This has been the source of a lot of confusion for me.
My understanding is that there are pre-amps that have the capability of providing a "pass through" selection that will shift the control back to the Home theater receiver (volume, digital formats) to listen to movies and multi channel music.
I may be all mixed up here.
Thanks for the info