Technical specifications

• Nominal Diameter: 530 mm (21in)
• Impedance: 8 Ohm
• Minimum Impedance: 6.8 Ohm
• AES Power: 1700 W
• Program Power: 3400 W
• Sensitivity: 98 dB
• Frequency Range: 30 -1000 Hz
• Voice Coil Material: CCAW
• Voice Coil Former: Glass Fiber
• Voice Coil Depth: 38 mm (1.5in)
• Magnetic Gap Depth: 14 mm (0.55in)
• Cone Material: Water Resistant Treated Paper + Water Proof Both Sides Treatment
• Surround Material: Polycotton
• Chassis Material: Aluminium
• Magnet Material: Neodymium
• Magnet Dims: 113 x 40 x 17 mm
• Driver Displacement Volume: 10.3 l (0.36ft³)
• Recommended Enclosure: 296.1 l (10.46ft³)
• Recommended Tuning: 35 Hz

Thiele and small parameters

• DC Resistance (Re) - 5.21 Ohm
• Resonance (Fs) - 33 Hz
• Moving Mass - System (Mms) - 405.6 g
• Compliance (Cms) - 0.058 mm/N
• Force Factor (BL) - 38.87 Tm
• Mechanical Q (Qms) - 11.03
• Electrical Q (Qes) - 0.29
• Total Q (Qts) - 0.28
• Compliance Equivalent Volume (Vas) - 225.35 L
• Voice Coil Inductance (Le) - 4.72 mH
• Diaphragm Area (Sd) - 1661.9 cm²
• Reference Efficiency (Eta Zero) - 2.67% %
• Efficiency Bandwidth Product (EBP) - 114
• Maximum Linear Excursion (Xmax) - 15.5 mm
• Maximum Mechanical Excursion (Xmech) - 24 mm

Shipping Information

• Net weight: 15.2 kg (33.4lb)
• Multipack size (WxDxH): 642 x 642 x 302 mm (25.3 x 25.3 x 11.9in)
• Multipack weight: 20.7 kg (45.5lb)