I built the cmoy. It was easy. But I know nothing about how it works, and I remember reading warnings on associated web pages like "this is not a guitar amp" etc. I'm curious to know a little more about how these (amps generally) work, why they're seemingly non trivial to design at a reasonable quality level etc.
Yeah thanks but it's not that I want to build a guitar amp; I'd just like to read a little about the difference between guitar and headphone amps, different design decisions for headphone amps generally, things like that.