Rated Impedance: 8 Ω± 15% at  200  Hz
Rated Power: 50W
Max. Power: 100 W
Sensitivity: 87 dB ± 3dB , 1W/1M
Frequency Range : 30 Hz ~ 20KHz -10dB / ±20% Hz
Resonance Frequency: 45 Hz ±20%
Whistling : 11 Volts 
Membrane; Fiber cone and rubber surround
Baffle: ABS / White
Mesh Grille: Steel / White
Dimension: 365 ^L x 264 ^W x 100 ^H mm
Weight: 2.7 kgs