As I have trudged throught this HT jungle over the last year or so, I have assembled a decent setup so I can enjoy music and movies closer to the way they were intended to be enjoyed. One of the tangents I chose to ignore was that of separates. I opted for a good quality AV receiver and it has fit my needs. In fact, I have just replaced a Denon 1803 with a 3803 in the last couple of weeks. The 3803 (110 Watts/channel) can act as a pre/pro and affords an opportunity to add an amplifier. I just finished reading about spiff's Stratos.

In simple terms, (not even a little bit interested in charts and articles from experts that get into audio theory to the point of causing me to bleed from the eyes), what does an additional amplifier actually do? How does it enhance an audio setup? Why would I want to consider an amplifier? Is the additional cost for an justified? The tote board is open.