Specifications
Nominal Diameter
530 mm (21.0 in)
Nominal Impedance
8 Ω
Minimum Impedance
6.5 Ω
Nominal Power Handling1
1700 W
Continuous power handling2
3400 W
Sensitivity (1W/1m)3
99.0 dB
Frequency Range
30 - 1000 Hz
Voice Coil Diameter
116 mm (4.5 in)
Winding Material
Aluminium
Former Material
Glass Fibre
Winding Depth
36.0 mm (1.42 in)
Magnetic Gap Depth
14.0 mm (0.55 in)
Flux Density
0.8 T
Design
Surround Shape
Triple Roll
Cone Shape
Radial
Magnet Material
Neodymium Inside Slug
Spider
Double Silicone
Pole Design
T-Pole
Woofer Cone Treatment
TWP Waterproof Both Sides
Recommended Enclosure
130.0 dm3 (4.59 ft3)
Recommended Tuning
40 Hz
Parameters4
Resonance Frequency
30 Hz
Re
5.1 Ω
Qes
0.24
Qms
10.0
Qts
0.23
Vas
269.0 dm3 (9.5 ft3)
Sd
1680.0 cm2 (260.4 in2)
η₀
3.0 %
Xmax
± 15.0 mm
Xvar
± 16.5 mm
Mms
407.0 g
Bl
40.8 Txm
Le
4.6 mH
EBP
125 Hz
Mounting and Shipping Info
Overall Diameter
547 mm (21.54 in)
Bolt Circle Diameter
527 mm (20.7 in)
Baffle Cutout Diameter
508.0 mm (20.0 in)
Depth
255 mm (10.04 in)
Flange and Gasket Thickness
13 mm (0.51 in)
Air Volume Occupied by Driver
15.0 dm3 (0.53 ft3)
Net Weight
14.8 kg (32.63 lb)
Shipping Units
1
Shipping Weight
17.1 kg (37.7 lb)