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 ...

[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 ...

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 ...

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 ...

We review a lot of audio products here at Techaeris but the Samson QH4 is the first headphone amp we’ve taken a look at. The use cases for a headphone amp vary, from studio recording to educational ...