2pcs/lot 

Throat Diameter :25 mm (1 in)
Nominal Impedance :8 Ω
Minimum Impedance: 6.5 Ω
 
Power Handling
(1200 - 20000 Hz)
Nominal (AES) :80 W
Continuous Program3:150 W
Sensitivity (1W/1m):109 dB
 
Frequency Range :1.0 - 18 kHz
Recommended crossover : 1.5 kHz
Voice Coil Diameter :44 .4mm (1.73 in)
Winding Material: Aluminium
Inductance: 0.11 mH
Diaphragm Material :Polyester
Flux Density :1.8 T
Magnet Material :Neodymium Ring
 
Overall Diameter: 85 mm (3.3in)
Depth :44 mm (1.7 in)
Net Weight (1 unit) :0.7  to 0.9  kg (1.8 lb)
​szie error:+/- 1 to  2  mm