FiiO has launched the K15 Desktop DAC and Headphone Amplifier, offering a more affordable alternative to the higher-end K17, which is priced just shy of $1,000. The K15 retains much of what makes the ...

This paper presents a high-voltage power amplifier for driving flexible paper speaker. Simple circuit complexity and high signal quality can be achieved. The operating principles and design ...

This paper describes the design of a power supply intended for a traveling wave tube (TWT) power supply. For the faithful operation of the TWT amplifier, constant DC voltages are required for the ...

FiiO is taking the entry-level fight to WiiM’s door this week with the introduction of the K15: a desktop streaming DAC ...