I'm working my way through a build of Bruce Heran's 6DJ8 headphone amp, the schematic is available on diyaudioprojects. I decided to build it because I had most of the parts lying around and the transformers were cheap, so my overall investment is pretty minimal. I've built a number of...

I'm currently using an Elekit TU-8200 that I love, but sometimes find to be imperfectly suited to headphones. And I'm in the mood for a new build (to be more honest). In searching I've seen Pete's ECC99 mentioned in regards to K1K amps. But I am powering HD800's. I was wondering how his...