Technical specifications

• Nominal Diameter: 100 mm (4in)
• Overall Diameter: 129.5/100.5 mm (5.11/3.96in)
• Bolt Circle Diameter: 115.26 mm (4.54in)
• Baffle Cutout Diameter: 91.5 mm (3.60in)
• Overall Depth: 49.8 mm (1.96in)
• Flange/Gasket Thickness: 7.2 mm (0.28in)
• Impedance: 4 ohm
• Minimum Impedance: 3.7 ohm
• AES Power: 30 W
• Program Power: 60 W
• Sensitivity: 91 dB
• Frequency Range: 90:20000 Hz
• Voice Coil Diameter: 19 mm (0.75in)
• Voice Coil Material: Al
• Voice Coil Former: Kapton
• Voice Coil Depth: 4.8 mm (0.19in)
• 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: No
• Flux Density: 1.4 T
• Driver Displacement Volume: 0.075 L (0.003ft^3)

Thiele and small parameters

• Resonance (Fs) - 100 Hz
• DC Resistance (Re) - 3.3 Ohm
• Electrical Q (Qes) - 0.62
• Mechanical Q (Qms) - 3.5
• Total Q (Qts) - 0.53
• Compliance Equivalent Volume (Vas) - 2.5 L
• Diaphragm Area (Sd) - 51.9 cm²
• Maximum Linear Excursion (Xmax) - 1.73 mm
• Maximum Mechanical Excursion (Xdamage) - 6.8 mm
• Moving Mass - System (Mms) - 3.8 g
• Force Factor (BL) - 3.7 Tm
• Voice Coil Inductance (Le) - 0.11 mH
• Moving Mass - Diaphragm (Mmd) - 3.4 g
• Compliance (Cms) - 0.67 mm/N
• Mechanical Resistance (Rms) - 0.7 Kg/s
• Reference Efficiency (Eta Zero) - 0.42 %
• Efficiency Bandwidth Product (EBP) - 161

Shipping Information

• Net Weight: 270 kg (0.6lb)
• Shipping Weight: 2.8 kg (6.2lb)

Notes

1 - AES Power: 2 Hours Test According to AES 2-1984 Rev. 2003
2 - Maximum/Program power is defined as 3 dB greater than AES Power
3 - Xmax: Xmax= [(winding depth - magnetic gap depth)/2] + (magnetic gap depth/3)
4 - Xdamage: Maximum excursion before permanent damage