FiiO's $380 CLASS A headphone amp can switch to Class AB with low-impedance headphones. Here's what FiiO says and why the ...

Plenty of those records sounded terrific, but buyers felt short-changed anyway and a class action lawsuit followed. Which brings us to FiiO’s latest desktop box. It’s a headphone amplifier and ...

This design is derived from the Portable Headphone Amplifier featuring an NPN/PNP compound pair emitter follower output stage. An improved output driving capability is gained by making this a ...

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 ...