Classe 9 · Tecnologia & Comunicação
Audio amplifiers; loudspeakers; subwoofers; loudspeakers; loudspeaker systems; cases for loudspeakers; amplifier stands; apparatus for recording, transmission or reproduction of sound or images; sound mixing apparatus; audio mixing apparatus; sound mixers with integrated amplifiers; acoustic meters; metronomes; stereo tuners; sound recording carriers; sound reproduction apparatus; audio- and video-receivers; microphones; microphone stands; electric connectors; cables, electric; electrical connection cables for computer music; jack plugs; musical instrument connectors; digital audio/video cables; digitisers; software to control and improve audio equipment sound quality.;