I'll watch the video when I get some spare time Dakkon, thanks.

This is starting to make more sense to me, but I'm still fuzzy around the relationship between the amplifier and the transistor(s).

Which one gets the signal from the pre-amp section; the amp or the transistor? Or, in this case (channel output controlled by transistors) is the 'amp' just used for volume / gain control?

If I were to draw a block diagram with the ins / outs, what would it look like from the sine wave representing channel frequency to the speaker driver?

I searched "mosfet" at Wiki and am trying to get through that.

Thanks for the clarification on the assignable channels. I have not read the manual yet, but kept seeing "assignable amps" in the big AVS threads for these AVR's.