There’s a mystique among both audiophiles and musicians about vacuum technology, thus having a tube amp still carries a ... triode preamp and a single power output tube. The transformers are ...

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 power pentode for each channel.

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 ...

focus on short-term bass output. They’re built for rock concerts where saving space and weight is critical, and where amplifiers only need to deliver high power for 20 to 40 milliseconds, and rarely ...

Probably one of the most celebrated amplifiers ever made—the 33/303 two-box pre/power amp system from Quad ... buttons under the rotary controls for bass, treble and slope adjustment.

Treble and Bass), high- and low-level inputs, a 4-ohm 8-inch speaker (usually an Oxford 8EV, but sometimes a Jensen speaker was used), and 5Y3 rectifier, 6V6 power and 12AX7 preamp tubes.