[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 ...

Hand-crafted in New Jersey, the all-tube stereo VPI 299D integrated amp looks, feels and sounds like a winner to the Audiophiliac! Ex-movie theater projectionist Steve Guttenberg has also worked as a ...

The Apos x Community Gremlin is a compact fully balanced Class A hybrid amp that delivers impressive warmth, tube rolling flexibility, and big performance for the price.

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 ...

Straight out of Brodheadsville, Pa. comes an amp that uses vacuum tubes and Class D technology: the Rogue Sphinx is one of the sweetest amps around. Ex-movie theater projectionist Steve Guttenberg has ...

James Chung, FiiO’s CEO, has taken a leaf out of Jason Stoddard’s book to share the story behind the Warmer R2R DAC on ...