Ключевые слова: acoustics, amplification, audio, brown, cabinet, central, channel, circle, classic, closeup, component, dialog, electric, electrical, frequency, front, glass, gray, grey, hiend, hifi, high, high end, home cinema, home theater, listen, loudspeaker, material, molten, molten glass, mono, multimedia, music, natural, noise, object, play, professional, sound, speaker, stereo, surround, system, technology, tweeter, voice, wood, wooden,