Rated Impedance: 8 Ω± 15% at  500  Hz
Rated Power: 50 W
Max.Power: 80 W
Sensitivity: 85 dB ± 3dB , 1W/1M
Frequency Range : 45 Hz ~ 20K Hz  -10dB / ±20% Hz
Resonance Frequency: 65 Hz ± 20%
Whistling : 11 Volts
Termination: Binding Post
Baffle: ABS
Mesh Grille: Steel
Dimension: 283 ^Ф x  98 ^H mm
Weight: 1.5 kgs