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 ...

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.

AEA Ribbon Microphones will debut the FC2, a two-channel tube preamplifier, at the 2026 NAMM Show. Designed in collaboration with analog designer Fred Forssell, the FC2 brings a refined cascoded ...

The ZEQD-Pre has an EF86 pentode just like Dr Z's sweet high-end amps, and it might just give your rig the analogue warmth, colour, and hifi sheen you've been waiting for ...

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 ...

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 ...

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 ...

Forbes contributors publish independent expert analyses and insights. Technology journalist specializing in audio, computing and Apple Macs. McIntosh Laboratory, Inc., possibly one of the oldest and ...

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 ...

If you’ve wondered what a preamplifier is, what it exactly does, and whether your audio setup is missing one, we’ve got the answers—as well as some of our top recommendations. An audio signal needs ...

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 ...