Ключевые слова: amplifier, audio, background, black, cable, cables, closeup, communication, concert, connect, connection, connector, console, device, digital, electric, electronics, entertainment, equalizer, equipment, industry, input, jack, light, line, live, microphone, mixer, mixing, music, musical, network, output, pa, panel, plug, power, professional, rock, sound, speaker, stage, stereo, studio, system, systems, technology, video, volume, wire,