Ключевые слова: adjusting, amplifier, audio, background, board, buttons, close up, concert, console, control, dial, digital, electrical, electronic, engineer, entertainment, equalizer, equipment, finger, focus, frequency, guitar, instrument, knob, level, loud, metal, music, musician, noisy, panel, player, power, professional, recording, selective, setting, sound, speaker, stereo, studio, switch, technician, technology, tone, tuner, turn, volume,