Specifications：
Throat Diameter:	36 mm (1.4 in)
Mounting Type:	Bolt-on
Sensitivity (1W/1M):	106dB
Frequency Range:	500Hz-18KHz
Diaphragm Material:	4/8/16 Ohm
Diaphragm Material:	Composite Polyester/Titanium
Voice Coil Diameter:	74.4 mm (2.93 in)
Voice Coil Material:	Pure Aluminium  Ribbon Wire
Flux Density:	1.8T
Magnet:	Strontium Ferrite
Packing Details:
Overall Diameter x Depth:	Ф 170mm x 64mm
Net Weight:	4.50kg