[Simon] wrote in to tell us about a headphone tube amp that he just built. It is based on schematics at diyaudioprojects.com that were actually featured on Hackaday in the past. [Simon’s] design adds ...

If you’re curious about tube amplifiers, the Massdrop x Eddie Current ZDT Jr headphone would be a great place to start. Ex-movie theater projectionist Steve Guttenberg has also worked as a high-end ...

Big-name tube amplifiers often don’t come cheap. Being the preserve of dedicated audiophiles, those delicate hi-fis put their glass components on show to tell you just how pricy they really ought to ...

The Schiit Audio Folkvangr Headphone Amplifier is $1,800 and uses 10 tubes. The limited run of 250 won’t last long. The $1,800 Folkvangr is the most expensive Schiit headphone amplifier so far and an ...

I'm considering trying Tube amplification.<BR>An easy and cheaper way seemed to be with Headphone amplifiers.<BR><BR>I am a sucker for cool visual design also, so nothing DIY looking. I know < $300 is ...

If you want to hear how good your headphones can sound, try plugging them into Schiit Audio's Valhalla vacuum tube headphone amplifier. Ex-movie theater projectionist Steve Guttenberg has also worked ...

ITOK Media Limited’s innovative Hi-Fi brand “Trends Audio” launched its innovative Hi-Fi product for iPhone – Trends PA-10 Tube Headphone/Pre Amplifier for iPhone. It is the first hybrid design ...

Editor’s note: At the end of the MakerFaire in San Mateo, there is a “Bring a Hack Party “. That is where Ron Quan showed his tube headphone amplifier. Here’s quick circuit for driving high fidelity ...

Last year, Gear Patrol contributing staff writer Eric Adams reviewed the Monoprice Stereo Hybrid Tube Amp that comes bundled two 50-watt speakers and 10-foot cables. His conclusion: “I had to keep ...

Even without that striking logo, audio gear from McIntosh Labs has a look all its own, and one that's sure to stand out in any living room setup. The latest addition to the company's high-end catalog ...

The project is known as NP-100v12 which refers to a simple headphone amplifier built around the 12AU7 vacuum tube. The 12AU7 is also known as ECC82 in Europe that is popular in the audio world since ...