Nominal Specifications
Nominal Diameter: 460 mm (18 in)
Overall Diameter: 460 mm (18.11 in)
Bolt Circle Diameter: 440 mm (17.32 in)
Baffle Cutout Diameter: 422 mm (16.61 in)
Depth: 202 mm (7.95 in)
Flange and Gasket Thickness: 14 mm (0.55 in)
Net Weight: 6.6 Kg (14.6 lb)

Technical Parameters
Nominal Impedance: 8 Ohm
Minimum Impedance: 6.5 Ohm
AES Power Handling: 1000 W
Maximum Power Handling: 2000 W
Sensitivity (1W/1m): 98 dB
Frequency Range: 35÷1600 Hz
Voice Coil Diameter: 100 mm (4 in)
Winding Material: Cu
Former Material: Glass Fiber
Winding Depth: 23 mm (0.91 in)
Magnetic Gap Depth: 12 mm (0.47 in)
Flux Density: 1.3 T
Magnet: Neodymium Slug
Basket Material: Aluminum
Demodulation: No
Cone Surround: Triple Roll
NET Air Volume filled by Loudspeaker: 5.8 dm^3 (0.205 ft^3)
Spider Profile: 2x non-adjacent symmetrical constant height waves

Thiele and small parameters
Fs: 35 Hz
Re: 5.4 Ohm
Qes: 0.31
Qms: 14.4
Qts: 0.3
Vas: 179 dm^3 (6.32 ft^3)
Sd: 1124 cm^2 (174.22 in^2)
Xmax: 9.50 mm
Xdamage: 17.5 mm
Mms: 207.0 g
Bl: 28 N/A
Le: 1.75 mH
Mmd: 185.7 g
Cms: 0.10 mm/N
Rms: 3.67 Kg/s
Eta Zero: 2.43 %
EBP: 113 Hz