Consumer communication and electronic audio products and related peripherals, namely, [ computers; ] multimedia sound systems consisting of amplifiers, power systems consisting of ac line cords, fuses, EMI filters, line rectifiers, energy storage capacitors, switches, transformers, fast rectifiers, feedback loops, output filters and output terminals; audio processors, audio mixers, audio speakers and computer hardware and software for use in connection with multimedia sound systems, and user ...

consultation services in the field of audio electronics