Throat Diameter:1in(25mm) 

Mounting Type:Screw on 13/8″ 

Diaphragm Material :Titanium

FrequencyRange:1.2KHz-20KHz

Voice Coil Material :Copper clad aluminum round wire
Voice Coil Diameter:2.3 in (51.6mm)    

Magnet: Strontium Ferrite
 Sensitivity(1M/1W):106dB  
Nominal Impedance:8 Ohm  

 Flux Density:1.75T  

orter diameter:Ф135mm    
Net Weight:2.73kg  

 PCS/CTN:6PCS  

  Power Capacity:40Watts RMS(pink noise signal-12db/0CT)