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.

Zappa put two distinct setups to the test to see if listeners could truly tell the difference between tube amps and their digital counterparts ...

You may have seen me write elsewhere that the Fender Princeton is, in my opinion, the best tube amp overall. It’s just the right size, it’s got the right amount of power to get incredible tube ...

Unlock the gates of Asgard with Schiit Valhalla 3 — a fully modern, OTL/OCL tube headphone amp forged for high-impedance cans and audiophiles who crave that warm, glowing Valhalla magic.

Let's take a spin through some of what I consider to be the best tube amps on the market today (not counting priceless vintage artifacts).

Discover the untapped potential of this 300B tube amp that's flying under the radar. Our review uncovers its unique features, sound quality, and why it's a must-have for serious audiophiles. Don't ...

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.

Audio Headphones These luxe wireless headphones stick a tube-amp hi-fi on your head, and offer really hardcore Hi-Res Audio support News By Carrie Marshall published 30 January 2025 ...

Audio Headphones with a built-in vacuum tube amp for vinyl-like sound!? They're real, and they look super cool News By Tammy Rogers published 29 January 2025 Make all your music sound like Vinyl ...

Part 5 provides spec summary of the GP/R K2-W vacuum-tube op amp and discusses measurement constraints/conditions and LTspice modeled output.

After a brief review of the history of the K2-W vacuum-tube op amp, an LTspice model is used to create its schematic in preparation for SPICE simulation.