The Dynaco ST-70 is one of the most popular tube amplifiers ever. First released in 1959, it's still sought after by hi-fi enthusiasts today.

Years ago, intrigued by the hype around NOS tubes and the promise that they could magically transform my amps into tonal bliss, I invested in a stash of pricey NOS 12AX7 preamp tubes just to see what ...

Synergy has unveiled the SYN-20IR, a tube amp head with a revolutionary design that allows players to swap preamp modules in and out, making for a fully customisable guitar amp – and this head has ...

I’ve you ever gone to bed drifting off wishing you had an analogue-ready portable amp for some of the best wired headphones, your sweatiest sound dreams have come true.

A conventional tube amplifier has a circuit whose fundamentals were well in place around a hundred years ago, so there are few surprises to be found in building one today. Nevertheless, building on… ...

A conventional tube amplifier has a circuit whose fundamentals were well in place around a hundred years ago, so there are few surprises to be found in building one today. Nevertheless, building ...

Priced from $10,000, the Feliks Audio Envy Meisterwerk headphone amplifier features all analog circuitry with 300B vacuum tubes.

Astell & Kern SP3000T review: a tube amp in your pocket The hardware is chunky and the software is clunky, but this is the best portable audio player I’ve ever heard.

Mesa/Boogie releases holy grail Mark IIC++ Metallica amp PRS refreshes tube amp range with the reworked Mark Tremonti MT 15 head and Archon Classic But then if it’s not broken… right? Well, there’s ...

The GA-10 is an audiophile-grade headphone amplifier that features the SEPP (single-ended push-pull) circuit with eight vacuum tubes, a linear transformer, and direct tube output. The vacuum tubes ...

Design analysis of the K2-W Vacuum Tube Op Amp’s design and operation reveals the mad science that created a commercial revolution in 1950s and 1960s analog computing.

Getting the precise tonal characteristics you're after for a guitar track is tricky. Luckily, we have a list of the best free guitar amp emulator plugins.