NAMM 2026: California’s very own Synergy Amps is a leader in modular tube amplifier technology and is set to push the envelope once more with its patent-protected Machine-Learning Power Amp technology ...

Here's why Metallica stopped using guitar amps live, according to James Hetfield's guitar tech. Metallica fans may or may not have even noticed that the rockers don't have a bunch of amps lined up ...

What Is a Tube Amplifier? Tube amps are made using vacuum tubes, which were invented in 1925. Using a glass bulb akin to a light bulb, tube amps take a weak signal and amplify it several times through ...

Harley Benton has added a compact tube amp switcher to its range of budget-friendly essentials, and retailing at under $100 the Tube Head Switch could be a gig (and amp) saver when running a dual-amp ...

Dynaco hasn’t made equipment in decades. Yet it’s still a name most audiophiles know off-hand. That’s because the American manufacturer left an indelible legacy on the world of hi-fi, thanks in large ...

The Feliks Audio Echo Vibe is a $1,095 OTL tube headphone amp from Poland that runs hot, sounds lush, and proves you don’t need 2 watts to melt your face off. Feliks Audio positions the Echo Vibe as ...

When you buy through our links, we may earn an affiliate commission. With all the modern amplifier and effects technology available today, there's still something to be said for the classic sound you ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: PRS Guitars PRS ...

The Spark 2 from Positive Grid looks like a miniature old-school amp, but it is, essentially, a computer with some knobs and a speaker. It has Bluetooth, USB-C, and an associated smartphone app. It ...

NAMM 2025: Boss has launched the Waza Tube Amp Expander Core, a “streamlined” and more compact version of its feature-packed reactive load box that promises “world-class recorded tones with no ...

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

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 one ...