Technical specifications

• Nominal Diameter: 460 mm (18in)
• Impedance: 8 Ohm
• Minimum Impedance: 6.8 Ohm
• AES Power: 1500 W
• Program Power: 3000 W
• Sensitivity: 95 dB
• Frequency Range: 35 - 1000 Hz
• Voice Coil Material: Copper
• Voice Coil Former: Glass Fiber
• Voice Coil Depth: 31.7 mm (1.25in)
• Magnetic Gap Depth: 15 mm (0.59in)
• Cone Material: Water Resistant Treated Paper + Water Proof Both Sides Treatment
• Surround Material: Polycotton
• Chassis Material: Aluminium
• Magnet Material: Ferrite
• Magnet Dims: 220 x 115 x 30 mm
• Driver Displacement Volume: 8.5 l (0.30ft³)
• Recommended Enclosure: 194 l (6.85ft³)
• Recommended Tuning: 37 Hz

Thiele and small parameters

• DC Resistance (Re) - 5.5 Ohm
• Resonance (Fs) - 37 Hz
• Moving Mass - System (Mms) - 270.48 g
• Compliance (Cms) - 0.068 mm/N
• Force Factor (BL) - 26.34 Tm
• Mechanical Q (Qms) - 9.01
• Electrical Q (Qes) - 0.5
• Total Q (Qts) - 0.48
• Compliance Equivalent Volume (Vas) - 143.9 L
• Voice Coil Inductance (Le) - 2.05 mH
• Diaphragm Area (Sd) - 1225.4 cm²
• Reference Efficiency (Eta Zero) - 1.42% %
• Efficiency Bandwidth Product (EBP) - 74
• Maximum Linear Excursion (Xmax) - 12.1 mm
• Maximum Mechanical Excursion (Xmech) - 21.4 mm

Shipping Information

• Net weight: 16 kg (35.2lb)
• Multipack size (WxDxH): 558 x 558 x 268 mm (22 x 22 x 10.6in)
• Multipack weight: 20.2 kg (44.5lb)