electrical conductors; electrical switches; electrical transformers; electrical accumulators; electrical voltage regulators, electronic controllers for loudspeakers and surround sound systems; apparatus for recording, transmission or reproduction of sound; pre-recorded magnetic data carriers featuring music; pre-recorded sound recording compact discs featuring music; data processors and computers; loudspeakers; loudspeaker systems; microphones; amplifiers; audio and video receivers; sound and video recording and reproducing apparatus and instruments; headphones; radio and television receivers and transmitters; gramophones, radiograms being combination radios and record players, playing decks being record players, and electronic sound pick-ups for electrical musical instruments; compact disc players; video disc players; stereo loudspeakers incorporating radio and television receivers; audio electronic components, namely, surround sound systems; sound mixers; karaoke machines; monitoring, synchronizing and controlling devices, namely, radio monitors for reproduction of sound; digital music system that synchronizes digital music files stored on a home unit and a car unit; remote controls for radios; cabinets for multi-channel loudspeakers; electronic signal processors; audio equalizer apparatus; electronic crossover circuit networks for audio apparatus; digital to analog converters and digital signal processors; digital signal processors; computer hardware and downloadable computer software for digital signal processing; high fidelity apparatus, namely, sound recording apparatus for use in reproducing sound with little distortion; amplifier stands; stands adapted for sound mixers; stands adapted for digital sound processors; stands adapted for stereo and audio speakers; accessories for multi-channel loudspeakers, namely, speaker stands and cables