[Simon] wrote in to tell us about a headphone tube amp that he just built. It is based on schematics at diyaudioprojects.com that were actually featured on Hackaday in the past. [Simon’s] des… ...

You can turn these kits into a pleasing headphone amp with the addition of a few choice components. As per the schematic on Github, a cheap transformer and a handful of passives will get it in the ...

Eventually, I came up with a schematic, shown small in Schematic 1. You can obtain the schematics for this story by emailing [email protected], with “Curt’s schematics, please” in the subject ...

They're hand-made, artisan designs with prices starting at $2,450, so when I heard Massdrop had an Eddie Current amp in the wings I was eager to spend some ears-on time with this little guy, the ...

If you love that tube amp sound, check out Audio-Technica’s valve headphone amp $6,000 amp offers huge range of 120Ω, 82Ω, 33Ω and 0.1Ω outputs for true audiophiles.