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 ...

Upgrades include sonic improvements and new gain control functionality. Price of base model remains the same at $4450. Linear Tube Audio (LTA), the only manufacturer of amplifiers based on David ...

When most people think of tube circuits, the first thing that comes to mind is often the use of high-voltage power supplies. It wasn’t a given for tube circuits, though, as a range of low-voltage ...

You kind of have to know why you need it and how/when to use it, but VTP brings convincing valve warmth to any signal. MusicRadar's got your back Our team of expert ...

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 ...

There you are at the surplus store, staring into the bin of faded orange, yellow, red, and black, boxes–a treasure trove of vintage vacuum tubes—dreaming about building a tube amp for your guitar or a ...