ACOUSTIC SYSTEM Russian patent published in 1997 - IPC

FIELD: audio equipment. SUBSTANCE: device has housing, low-frequency loud speaker which has diffuser which is mounted in housing, sound reflector which is shaped as sphere and which is located in opposite to front surface of diffuser and spaced from it. Its base is attached to inner side of frontal side of housing along inner radius of its axial hole. Loud speaker is mounted around diffuser edge in hole of hemispheric wall of housing. EFFECT: increased functional capabilities. 4 cl, 4 dwg