A small battery-powered headphone amp is a useful item to keep in your tool bag or remote kit. It can provide additional monitoring options when the headphone jack on your mixer is already taken or ...

At the extreme budget end of tube audio lie single-tube amplifiers usually using very cheap small-signal pentodes. They’ve appeared here before in various guises, and a fitting addition to those ...

For a long time, standalone DACs (digital to analog converters) and headphone amps were something only audiophiles bothered with. Now, with the resurgence in popularity of headphones, they’re getting ...

As soon as I have a work bench area, I’m going to start getting into this stuff. The idea of having a headphone amp that I put together all by myself is incredibly attractive to me for some reason.

[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 ...

Following on from the launch of the DIY music range from Korg launch last year as Nu:Tekt, Korg has announced that their new HA-S headphone amp kit will be arriving next month and available to ...