Thanks again BMXTriX.
I went ahead and ordered the XDA-2 Emotiva pre amp. I've yet to buy amps. Eventually, I can see wanting to supply 6++ sets of speakers with sound throughout the house...not at all connected to a home theater---just music. This is why I am considering the bulk purchase of 5 of these Crown amps, which seem to be ubiquitous, though I suspect I might be sacrificing sound quality as these things seem to be used as PA's mostly (?). Though they are just supplying power right? not signal? Finding a receiver with multi-room functions is not at all easy, and I am now learning from you and others that using separates is the way to go.
So here's another dumb question: The HomeSpot NFC-enabled thingy you linked me to...please tell me it is not to be used in lieu of the Emotiva I just dropped $270 (Visa) on? Without having read the specs on it, I'm guessing it would somehow connect to the preamp which is connected to the amp etc, etc, etc and allow me to connect my ipod using Bluetooth...or is a hard wire connection preferred and/or stronger? Too, the Emotiva comes with a METAL remote control....so I can control volume without having to touch the ipod, or the gain buttons...
One concern I have when using the digital-out as a source from my ipod (using my Kokkia transmitter) is that when playing Bluetooth, the battery seems to run down pretty quickly. I'm guessing you guys will tell me that the digital connection is far superior to the headphone-out connection, and that I'll just have to re-charge the ipod as needed. I'm still always amazed at how quickly my iopd recharges... if I needed continuous music, I could always temporarily use the headphone connection to play-as-charging...to keep the party rolling!
Onward and upward
You have been a great help. thanks!