http://www.amazon.com/exec/obidos/tg...=UTF8&v=glance
This little 15W amp goes for $30, meant to go between your mp3 player and your home speakers.
http://www.forbes.com/global/2005/1003/026A.html
Audiophiles proclaim it the Next Big Thing, comparing it to multi-$thousand amps.
It wasn't even the company's intent to build something really hi-fi, but they appear to be the first to use this particular type of amplification described in the Forbes article. The critical part used is cheap to produce. I don't exactly understand the electronics behind amplification... I understand what I need to know, but not how chips actually amplify. Audio engineers must be going crazy right about now.