Specification :

Nominal Basket Diameter

18" / 460mm

Impedance

8 ohms

AES Power Rating

900 Watts
Program Power 1, 800 Watts

Frequency Response

25Hz - 1.5kHz

Sensitivity ( 1W/ 1m)

98dB

Voice Coil Diameter

4.5" / 114mm
Recom. Enclosure Volume 2.8-7.0 ft3 / 80-200 Liters
Voice Coil Length 25 mm
Air Gap Height 11 mm
X Damage ( peak to peak) 40 mm
BL Factor 24.4 N/ A
Magnetic Assembly Weight 25.3 lb. / 11.5 kg.

Mounting Information
Overall Diameter 18.11" / 460mm
Bolt Circle Diameter 17.24" / 438mm
Baffle Cutout Diameter-
- Front Mount 16.34" / 415mm
- Rear Mount 16.73" / 425mm
No. Of Mounting Holes 8
Volume Displaced By Driver 0.46 ft3 / 13 Liters
Overall Depth 8.27" / 210mm
Net Weight 30.8 lb. / 14 kg.
Shipping Weight 34.43 lb. / 15.65 kg.

Materials
Basket

Die Cast Aluminum
Cone Paper
Surround Plasticised Cloth
Voice Coil Edgewound Copper Ribbon
Magnet Ferrite

Thiele-Small Parameters
Resonant Frequency ( fs) 36 Hz
Impedance ( Re) 5.25 ohms
Coil Inductance ( Le) 1.4 mH
Mechanical Q ( Qms) 8.875
Electrical Factor( Qes) .385
Total Q ( Qts) .37
Comp. Equivelant Vol. ( Vas)

7.42 ft3 / 210 Liters
Voice Coil Overhang ( Xmax) 9.0 mm
Surface Area of Cone ( Sd) m2 0.1200m2
Reference Efficiency 2.5%
Displacement Volume ( Vd) 1075 cm3