Ключевые слова: active, amplifier, audio, background, bass, big, black, concert, dual, electronic, entertainment, event, hifi, isolated, karaoke, large, left, live, loudspeaker, loundspeaker, mobile, modern, monitor, music, object, passive, performance, portable, power, professional, right, show, side, small, sound, speaker, speakers, stage, stand, stereo, studio, surround, surround sound, system, theater, wood, woofer,