Forbes contributors publish independent expert analyses and insights. Technology journalist specializing in audio, computing and Apple Macs. South Korean award-winning audio brand Astell&Kern has ...

Astell&Kern today introduced two new headphone amplifiers, the ACRO CA1000T ($2,229) carriable headphone amp and the PA10 ($599) portable headphone amp. In addition, the HC3 Dongle DAC ($229) we ...

If you own some of the very best headphones, you've probably encountered a really frustrating problem with mobile audio: many devices just aren't powerful enough to drive high quality headphones or ...

If you didn’t know better, you might think the phrase “class A amplifier” was a marketing term to help sell amplifiers. But it is, of course, actually a technical description of an amplifier that ...