N9 AUDIO WOOFER

* Nominal diameter: 18 inch / 457mm

* Power rating: 1200W (AES)

* Nominal impedence: 8Ω

* Sensitivity: 96dB

* Frequency ranger: 45Hz~2800Hz

* Chassis type: Cast Aluminium

* Magnet type: Ferrite

* Magnet size(mm): 220 x 110 x 25

* Magnet weight: 125。24 OZ

* Voice coil diameter: 99.3mm / 4 inch ( 2 layers, outside & inside )

* Coil material: SV-R

* Former material: Glass fiber 

* N Weight (Kg): 11.67