Tape recorder, amplifier, speaker, equalizer, tuner/radio, compact disc player, VCD player, DVD player, laser disc player, kabel audio, microphone, pesawat televise, diskette, alat-alat potret, alat-alat optic, pesawat penggerak otomatis, mesin-mesin bicara, kas register, pesawat video, antenna parabola, bosster, ballast, trafo, disk optic, bel pintu listrik, audio mixer, professional amplifier, sound processor (compressor limiter, active crossover, professional aqualizer, echo, delay), profesionaal speaker system (untuk band, untuk lapangan, untuk studio), spepart radio, prepart tape, spepart TV, box speaker, remot control, bel listrik, kumpaaran magnit