Specification Dimensions :W170*D282*H600mm Frep.Response: 55-20 K Hz Impedance: 4 ohm Sensitivity: 88dB Signal Nosie Ratio: ≥83dB Rated Power: 20W*2 Net weight: 16kg/ pair Feature: Wood enclosure ,reduce the possibility of syntony. Excelent high-power reproducer with low distortion. Finished in ivory veneer has been processd . Sophisticated designed,fine manufacture graceful craft. Impact noise is avoided . enjoyment in music will not be disturbed any more.