Impedance: 8 ohms
Woofer: 4 "(103mm) paper cone with rubber edge, KSV19mm,magnet70*15mm
Tweeter: 0.5" (13mm) Mylar dome, magnet40*8mm
Sensititity(1w/1m): 88dB
Frequency Response: 90Hz-18KHz
Power(RMS):30W
Over Dimension(H*W*D):  210*170*143 mm
Switch Transformer: 10W-5W-2.5W/100V
Colur: white/black