Audio amplifiers; Audio and video cassette recorders; Audio cables; Audio cassette and CD players; Audio cassette players; Audio cassette recorders; Audio circuit boards; Audio dubbing apparatus; Audio electronic components, namely, surround sound systems; Audio equaliser apparatus; Audio equalizer apparatus; Audio headphones; Audio interfaces; Audio mixers; Audio processing equipment, namely, limiters and compressors; Audio recorders; Audio tape recorders; Audio transmitter units; Audio- and video-receivers; Audio-frequency transformers; Audio-receivers and video-receivers; Audio-video receivers; Boxes specially adapted for housing audio equipment; Consumer electronic products, namely, audio amplifiers, audio receivers, electrical audio and speaker cables and connectors, audio decoders, video decoders, power conversion devices, power converters, and power inverters; Digital audio and video recorders and players; Digital audio players; Digital audio tape players; Digital audio tape recorders; Distribution amplifiers for audio and video signals; Downloadable software to control and improve audio equipment sound quality; Electric audio playback units; Electronic equipment, namely, transformers, baluns, and cables, all used in connection with computers, computer peripheral devices, televisions, audio-video equipment, closed-circuit TV equipment and telecommunication equipment; Electronic interconnecters for audio and video signals; Electronic products for the generation, measurement, and analysis of audio signals, namely, audio analyzers; Electronic products for the manipulation of the frequency, time, and amplitude characteristics of audio signals, namely, audio processors; Electronic scalers for audio and video signals; Electronic switchers for audio and video signals; Equalisers being audio apparatus; Equalizers being audio apparatus; Matrix switchers for audio and video signals; Portable audio players; Prerecorded audio tapes featuring music; Signal processors for audio speakers; Vibration dampeners for electronic audio equipment