Technical specifications

• Nominal Diameter: 460 mm (18in)
• Impedance: 8 Ohm
• Minimum Impedance: 5.8 Ohm
• AES Power: 1200 W
• Program Power: 2400 W
• Sensitivity: 96.5 dB
• Frequency Range: 40 - 1000 Hz
• Voice Coil Material: Copper
• Voice Coil Former: Glass Fiber
• Voice Coil Depth: 22.7 mm (0.89in)
• Magnetic Gap Depth: 12 mm (0.47in)
• Cone Material: Water Resistant Treated Paper + Water Proof Front Side Treatment
• Surround Material: Polycotton
• Chassis Material: Aluminium
• Magnet Material: Ferrite
• Magnet Dims: 220 x 120 x 25 mm
• Driver Displacement Volume: 8.5 l (0.3ft³)
• Recommended Enclosure: 160 l (5.7ft³)
• Recommended Tuning: 38 Hz

Thiele and small parameters

• DC Resistance (Re) - 4.9 Ohm
• Resonance (Fs) - 38 Hz
• Moving Mass - System (Mms) - 246.2 g
• Compliance (Cms) - 0.069 mm/N
• Force Factor (BL) - 24.66 Tm
• Mechanical Q (Qms) - 10.3
• Electrical Q (Qes) - 0.48
• Total Q (Qts) - 0.46
• Compliance Equivalent Volume (Vas) - 146.93 L
• Voice Coil Inductance (Le) - 1.93 mH
• Diaphragm Area (Sd) - 1225.4 cm²
• Reference Efficiency (Eta Zero) - 1.70% %
• Efficiency Bandwidth Product (EBP) - 79
• Maximum Linear Excursion (Xmax) - 8.4 mm
• Maximum Mechanical Excursion (Xmech) - 15.4 mm

Shipping Information

• Net weight: 13.5 kg (29.8lb)
• Multipack size (WxDxH): 558 x 558 x 256 mm (22 x 22 x 10.1in)
• Multipack weight: 17.4 kg (38.2lb)