SPECIFICATION

• Nominal Basket Diameter 18", 457 mm
• Nominal Impedance* 8 %u03A9
• Power Rating*
• Program Power 3200 W
• Watts 1600 W
• Resonance 36 Hz
• Usable Frequency Range 27 Hz - 1.3 kHz
• Sensitivity* 96.6 dB
• Magnet Weight 33 oz.
• Gap Height 0.5", 12.7 mm
• Voice Coil Diameter 4", 102 mm

Thiele and small parameters:  Need some help? Read our quick guide to TS Params.

• Resonant Frequency (fs) 36 Hz
• DC Resistance (Re) 5.86 %u03A9
• Coil Inductance (Le) 1.54m H
• Mechanical Q (Qms) 8.46
• Electromagnetic Q (Qes) 0.39
• Total Q (Qts) 0.38
• Compliance Equivalent Volume (Vas) 164.49 liters / 5.81 cu.ft.
• Peak Diaphragm Displacement Volume (Vd) 1851.1 cc
• Mechanical Compliance of Suspension (Cms) 0.08 mm/N
• BL Product (BL) 28.24 T-M
• Diaphragm Mass Inc. Airload (MMs) 237 grams
• Efficiency Bandwidth Product (EBP) 91
• Maximum Linear Excursion (Xmax) 15.21 mm
• Surface Area of Cone (Sd) 1217 cm2
• Maximum Mechanical Limit (Xlim) 31.5 mm

MOUNTING INFORMATION

• Recommended Enclosure Volume
• Sealed N/a
• Vented 99.11-339.80 liters / 3.50-12.00 cu.ft.
• Driver Volume Displaced 0.205 cu.ft. / 5.81 liters
• Overall Diameter 18.13", 460.5 mm
• Baffle Hole Diameter 16.6", 421.6 mm
• Front Sealing Gasket YES
• Rear Sealing Gasket YES
• Mounting Holes Diameter 0.28", 7.1mm
• Mounting Holes B.C.D. 17.32", 439.9mm
• Depth 8.9", 226.1 mm
• Net Weight 20.9 lbs, 9.48 kg
• Shipping Weight 23.4 lbs, 10.61 kgs

MATERIALS OF CONSTRUCTION

• Coil Construction I/O Copper voice coil
• Coil Former Fiberglass former
• Magnet Composition Neodymium magnet
• Core Details Vented motor
• Basket Materials Die-cast aluminum basket
• Cone Composition X5 cone pulp
• Cone Edge Composition Advanced Polycotton surround
• Dust Cap Composition X5 dust cap pulp