If you don’t know Fidelio yet. His blog musicalhead.de is one of the most respected ones in Germany. What makes him stand out, is the fact that he’s got all the stuff he tests at home, so you can count on his verdict being based on real time comparisons to the best-in-category. Anyway, he raves about Paltauf’s TOTL headphone amp KHV-ESD, and for a good reason. Check it out here. It’s worth reading!