Analogue to digital converters; Audio-receivers and video-receivers; Audio-video receivers; Electrical annunciators

Analog to digital converter (ADCs); Apparatus for transmitting and reproducing sound or images; Apparatus for the recording, transmission and reproduction of sound and images; Audio- and video-receivers; Audio-receivers and video-receivers; Audio amplifiers; Audio cables; Audio electronic components, namely, surround sound systems; Audio equalizer apparatus; Audio equipment for vehicles, namely, stereos, speakers, amplifiers, equalizers, crossovers and speaker housings; Audio transmitter unit...