在德国Accustic Arts（以下简称AA）旗下有一款极受好评的Tube Preamp II真空管前级扩大机，现在AA推出了第二代版本，名字叫做Tube Preamp II-MK2，原厂说明这是前代的修改版，或许称用小改款来形容应该更容易理解，除了延续前代设计重点之外，又增添了一些新功能，而 ...

If you’ve ever worked with vacuum tubes, you’ll probably have a healthy appreciation for high voltage power supplies. These components require higher potentials to get those electrons moving, or so we ...

The pursuit of audiophile hi-fi is one upon which many superlatives and perhaps a little too much money are lavished. But it’s also a field in which the self-builder can produce their own equipment ...

Stylish 19-Tube Preamp Ingeniously Lets Users Select Input Tubes For Each Audio Source; Only One in the World to Do So Einstein Audio Components, a leading German designer and manufacturer of premium ...

Nagra’s $24,500 PREAMP II-S is considered one of the company’s more affordable preamps. That alone tells you exactly who this is for—and who it isn’t. That it also likely sounds superb is almost ...

Forbes contributors publish independent expert analyses and insights. Technology journalist specializing in audio, computing and Apple Macs. McIntosh is the kind of high-end audio brand that most ...

NAMM 2014: Black Widow might have come up with the ultimate solution for those of us looking for a variety of tube sounds, but not sold on digital modelling. The MGP-1A is a 3U rack-mounted unit that ...

Audio’s TH1 wireless headphones use of a genuine triode vacuum tube in the preamplifier stage, making them unique and ...

If you purchase an independently reviewed product or service through a link on our website, Rolling Stone may receive an affiliate commission. A lot of things go into making your turntable and record ...

Pro-Ject launches new valve-based pre-amps: one compact, one full size Replaceable valves and wide support for MM and MC turntables £240 and £529 respectively Pro-Ject has announced two new phono ...

The circuit was designed to create a line preamplifier by acquiring the use of double triode tubes. The circuit comprises of three parts, the main preamplifier circuit with tubes, the input selector ...