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 ...

There’s a mystique in audiophile circles about tube amplifiers. They can have a very nice sound which is attributed to their even-harmonic distortion, but they are often portrayed as requiring ...

Not only is the ST-70 regarded as one of the most popular tube amplifiers of all time, it’s still widely sought after by ...

Poland-based Feliks Audio specializes in high-end vacuum tube audio products including a line of rather unique headphone ...