Cables, namely speaker cable, microphone cable, audio cable, audio frequency control cable, music instrument cable, recording cable, lighting cable, cable that carries sound signal as well as electrical current; shielded and non-shielded cables; single cable or multipair link systems, stage multipair distribution cables, power cords; Plugs, namely connectors; connectors to speakers, to mixers, to effects units, to amplifiers, to microphones, to musical instruments (guitars, keyboards, drums, string instruments, pianos, Disk Jockey (DJ) equipment, lighting units, recording units, computers, playback units), wall recessed panels, male and female plug ends; XLR connectors, impedance convertor and attenuators, 1/4' phone jack connectors, low-z balanced or high-z unbalanced connectors, cabinet speaker connectors, adapters and converters, 1/4' phone sockets, RCA connectors, Art Circle connectors, power plug and sockets, binding post connectors, wire connecting boxes; guitar and sound system accessories namely wire connecting boxes, audio panel, patch boxes, distribution panel, stage mulitpair distribution case, audio cable wire rewinders, tuners, metronomes; carrying cases