Ключевые слова: acoustic, audio, audio equipment, bass, black, closeup, color image, column, component, concert, digitally, disco, dynamic, effort, electronic, entertainment, equipment, front, head, image, listen, loud, loudspeaker, megaphone, membrane, modern, monitor, multimedia, music, musical equipment, nightclub, noise, power, professional, reproduction, rock music, sonic, sound, speaker, stereo, studio, surround, system, technology, tweeter, voice, volume, woofer, yellow,