OK, an amplifier merely takes the line level signal and amplifies it to speaker level.
A pre-amplifier is, at its most basic, simplified level, a volume control. The vast majority of them also switch between sources.
Preamp/processors also decode digital signals from DVDs, CDs, BDRs, etc.
Receivers incorporate amps, a pre-amp, and radio tuners in one unit.
To use a receiver with an amp, the receiver must have preamplifier-outs, aka pre-outs. Hook the inputs of the amp to those pre-outs for the front channels.
To your last question, yes.
Im assuming most receivers have pre-outs for front channels, if not all channels? How does the signal go from the receiver to the amp and bypass the power supply in receiver??? What do the power supplies of the channels your bypassing do? Just sit idle???
