bottlehead crack

I’m quite new to the audiophile realm and the amount of knowledge you guys have is truly admirable. It’s precisely why I decided to start a thread, I want to exercise as much restraint as possible when considering purchasing a phono preamp or whatever is required in order to utilize my current...

Selling my Bottlehead Crack 1.1 headphone tube amp that I built a couple of years ago. Selling due to not getting much use. I installed the Speedball upgrade when I built the unit. The wood base is stained black, with the corners sanded down so they do not get snagged on clothes, etc. Has the...

Hi everyone, I recently created the following setup to A/B test some of my headphone amps and am quite shocked, humbled, and confused by my result. Could you please share your thoughts and if this is normal? I'm seriously questioning my hearing abilities now and wonder if my hearing is somehow...