The FiiO K15 isn't just a DAC and headphone amplifier. The new unit also acts as a preamplifier and a streamer, with a host ...

The best tech products announced this week include Orange Amps' first-ever turntable and Nothing's striking noise-canceling ...

Aiming at the problem of poor human auditory sensation caused by the wide range variation of audio signal amplitude, a high-precision and expandable automatic volume control circuit system is designed ...

Discusses the technology of a transimpedance amplifier (TIA). A TIA is a two-port device that converts an input current in one port to an output voltage in another port. A TIA is expected to have a ...