Technical specifications

• Nominal Diameter: 530 mm (21in)
• Impedance: 8 Ohm
• Minimum Impedance: 6.9 Ohm
• AES Power: 2000 W
• Program Power: 4000 W
• Sensitivity: 97 dB
• Frequency Range: 30 - 1000 Hz
• Voice Coil Material: Copper
• Voice Coil Former: Glass Fiber
• Voice Coil Depth: 38.8 mm (1.53in)
• Magnetic Gap Depth: 18 mm (0.71in)
• Cone Material: Water Resistant Treated Paper + Water Proof Both Sides Treatment
• Surround Material: Polycotton
• Chassis Material: Aluminium
• Magnet Material: Neodymium
• Magnet Dims: 130 x 35 x 14 mm
• Driver Displacement Volume: 10.55 l (0.372ft³)
• Recommended Enclosure: 299 l (10.56ft³)
• Recommended Tuning: 32 Hz

Thiele and small parameters

• DC Resistance (Re) - 5.3 Ohm
• Resonance (Fs) - 32 Hz
• Moving Mass - System (Mms) - 458.8 g
• Compliance (Cms) - 0.052 mm/N
• Force Factor (BL) - 38.27 Tm
• Mechanical Q (Qms) - 5.67
• Electrical Q (Qes) - 0.34
• Total Q (Qts) - 0.32
• Compliance Equivalent Volume (Vas) - 214.53 L
• Voice Coil Inductance (Le) - 2.79 mH
• Diaphragm Area (Sd) - 1700 cm²
• Reference Efficiency (Eta Zero) - 2.08 % %
• Efficiency Bandwidth Product (EBP) - 94
• Maximum Linear Excursion (Xmax) - 14.9 mm
• Maximum Mechanical Excursion (Xmech) - 26.4 mm

Shipping Information

• Net weight: 17 kg (37.5lb)
• Multipack size (WxDxH): 570 x 570 x 299 mm (22.4 x 22.4 x 11.8in)
• Multipack weight: 20.2 kg (44.5lb)