As we’ve traced our no-nonsense path through the world of Hi-Fi audio, we’ve started with the listener, understood the limitations of the human ear, and thence proceeded to the loudspeaker.

Rather than build yet another boring black box, she built what may be the most awesome headphone amp ever by adding a tiny CRT which displays the current audio waveform. She packaged all this up ...

Amplifier The weak signal from the microphone ... The frequency of this signal is many times greater than the frequency of the audio wave. This signal will "carry" the audio signal over the ...