computer programs for data processing relating to the transmission, reproduction or reception of sound, and for controlling loudspeakers, amplifiers and other audio equipment, namely, stereos, speakers, equalizers, crossovers and speaker housings; computer software for the transmission, reproduction or reception of sound, and for controlling loudspeakers and amplifiers and other audio equipment, namely, stereos, speakers, equalizers, crossovers and speaker housings; computer hardware; computer peripherals; data processing apparatus; computer software and downloadable computer software for simulating, calculating and updating firmware, for developing and operating loudspeaker systems, and for calculating and displaying three-dimensional sound structures; downloadable electronic publications in the nature of brochures, handbooks and technical operating instructions, all in the field of the transmission, reproduction or reception of sound, and of controlling loudspeakers, amplifiers and other audio equipment namely, stereos, speakers, equalizers, crossovers and speaker housings

repair, installation and maintenance of loudspeakers, amplifiers and other audio equipment, namely, stereos, speakers, equalizers, crossovers and speaker housings

educational services, namely, conducting training and courses of instruction in the fields of sound, sound engineering and electronics; educational services, namely, conducting seminars and workshops in the field of the transmission, reproduction or reception of sound, and of controlling loudspeakers, amplifiers and other audio equipment, namely, stereos, speakers, equalizers, crossovers and speaker housings

technical consultancy in the fields of sound for scientific purposes, sound engineering and electronics; design, maintenance and updating of computer software; design, maintenance and updating of computer software for the transmission, reproduction or reception of sound, and for controlling loudspeakers