Ключевые слова: adjust, amp, amplifier, audio, band, black, change, close, closeup, control, effect, electrical, electronic, entertainment, equalizer, equipment, guitar, horizontal, knob, level, light, loud, metal, music, musical, nobody, panel, photo, plastic, power, processor, professional, rock, round, settings, sound, speaker, stereo, studio, switch, tone, treble, tuner, up, volume, yellow,