Ex-movie theater projectionist Steve Guttenberg has also worked as a high-end audio salesman, and as a record producer. Steve reviewed audio products for CNET and worked as a freelance writer for ...

Einstein Audio Components, based in Germany, is a manufacturer of tube amplifiers, a tube CD player, and phono stages and phono cartridges Ex-movie theater projectionist Steve Guttenberg has also ...

Most of the work that [Ron] has done in the past with vacuum tubes and solid state electronics has been repair. At 59 years old, he finally put together his own stereo tube amplifier and we have to ...

So you've decided that you'd like to pick up a headphone amplifier. Like many things in the world of audio, deciding which to buy can be a rabbit hole of different designs, types, and price points. We ...

I’ll have a lot more to say about the Vincent SV-737 Integrated Tube Stereo Amplifier next week in the second part of my review but I wanted to give a brief introduction and share some early thoughts ...

Until I tried Neuhaus Laboratories’ T-2 vacuum tube amp, I thought I had a pretty good speaker system hooked to my Mac. It was a three-piece ensemble with a pair of nice satellites and a honking big ...

[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] design adds ...