Ключевые слова: acoustic, adjust, adjuster, adjustment, analog, audio, board, button, channel, concert, console, control, digital, dj, electric, electronic, entertainment, equalizer, equipment, fader, frequency, instrument, knob, knobs, level, media, mix, mixer, mixing, music, old, output, panel, professional, radio, record, retro, slider, sound, soundboard, stereo, studio, switch, technology, volume,