Technical specifications

• Nominal Diameter: 100 mm (4in)
• Overall Diameter: 129.85/100.5 mm (5.11/3.96in)
• Bolt Circle Diameter: 115.26 mm (4.54in)
• Baffle Cutout Diameter: 91.5 mm (3.60in)
• Overall Depth: 54.1 mm (2.13in)
• Flange/Gasket Thickness: 7 mm (0.28in)
• Impedance: 4 ohm
• Minimum Impedance: 4.1 ohm
• AES Power: 40 W
• Program Power: 80 W
• Sensitivity: 93 dB
• Frequency Range: 100:20000 Hz
• Voice Coil Diameter: 25 mm (0.98in)
• Voice Coil Material: Al
• Voice Coil Former: Kapton
• Voice Coil Depth: 7 mm (0.28in)
• Magnetic Gap Depth: 4 mm (0.16in)
• Surround Type: Half
• Spider Profile: 1x constant height waves
• Chassis Material: Steel
• Magnet Material: Neodymium Ring
• Demodulating Ring: Copper Cap
• Flux Density: 1.4 T
• Driver Displacement Volume: 0.105 L (0.004ft^3)

Thiele and small parameters

• Resonance (Fs) - 110 Hz
• DC Resistance (Re) - 3.5 Ohm
• Electrical Q (Qes) - 0.4
• Mechanical Q (Qms) - 6.6
• Total Q (Qts) - 0.38
• Compliance Equivalent Volume (Vas) - 1.8 L
• Diaphragm Area (Sd) - 50.9 cm²
• Maximum Linear Excursion (Xmax) - 2.83 mm
• Maximum Mechanical Excursion (Xdamage) - 5.1 mm
• Moving Mass - System (Mms) - 4.3 g
• Force Factor (BL) - 5.4 Tm
• Voice Coil Inductance (Le) - 0.05 mH
• Moving Mass - Diaphragm (Mmd) - 3.9 g
• Compliance (Cms) - 0.49 mm/N
• Mechanical Resistance (Rms) - 0.5 Kg/s
• Reference Efficiency (Eta Zero) - 0.64 %
• Efficiency Bandwidth Product (EBP) - 275