Technical specifications

• Nominal Diameter: 100 mm (4in)
• Impedance: 8 Ohm
• Minimum Impedance: 7 Ohm
• AES Power: 40 W
• Program Power: 80 W
• Sensitivity: 91 dB
• Frequency Range: 110 -18000 Hz
• Voice Coil Material: Copper
• Voice Coil Former: Polyimide
• Voice Coil Depth: 6.4 mm (0.25in)
• Magnetic Gap Depth: 4 mm (0.16in)
• Cone Material: Water Resistant Treated Paper
• Surround Material: Rubber
• Chassis Material: Steel
• Magnet Material: Neodymium
• Magnet Dims: 65 x 32 x 14 mm
• Driver Displacement Volume: 0.09 l (0.003ft³)
• Recommended Enclosure: 3.37 l (0.119ft³)
• Recommended Tuning: 110 Hz

Thiele and small parameters

• DC Resistance (Re) - 8 Ohm
• Resonance (Fs) - 111 Hz
• Moving Mass - System (Mms) - 4.56 g
• Compliance (Cms) - 0.454 mm/N
• Force Factor (BL) - 6.9 Tm
• Mechanical Q (Qms) - 3.97
• Electrical Q (Qes) - 0.4
• Total Q (Qts) - 0.37
• Compliance Equivalent Volume (Vas) - 1.88 L
• Voice Coil Inductance (Le) - 0.028 mH
• Diaphragm Area (Sd) - 54.11 cm²
• Reference Efficiency (Eta Zero) - 0.61 % %
• Efficiency Bandwidth Product (EBP) - 18
• Maximum Linear Excursion (Xmax) - 2.2 mm
• Maximum Mechanical Excursion (Xmech) - 3.2 mm

Shipping Information

• Net weight: 0.39 kg (0.87lb)
• Multipack size (WxDxH): 415 x 370 x 160 mm (16.3 x 14.6 x 6.3in)
• Multipack weight: 9.6 kg (21.5lb)
• Multipack Quantity: 18