[Keri Szafir] is no exception, and she’s produced a stereo tube amp with a few modern features. Electrically it’s a relatively conventional single-ended design using a double triode and a ...

There’s a mystique among both audiophiles and musicians about vacuum technology, thus having a tube amp still carries ... is a pretty conventional single-ended one with a two stage double ...

Here comes a new compact power amplifier that isn’t made in China: Pro-Ject Audio Systems’ Amp Box RS2 is made in Europe; it ...