Rated Impedance: 8Ω ± 15% at  500  Hz
Rated Power: 40 W
Max. Power: 80W
Sensitivity (1W/M): 88dB ± 3dB , 1W/1M
Frequency Range: 90 Hz ~20KHz -10dB / ±20% Hz
Resonance Frequency             140 Hz ± 20%
Whistling: 9 Volts  
Membrane: PP cone / rubber surround
Basket / Baffle: ABS / White
Dimension: 306.5 ^L x 220 ^W x 106.5 ^D mm
Weight: 2.36 Kgs