Technical specifications

• Nominal Diameter: 460 mm (18in)
• Overall Diameter: 460 mm (18.11in)
• Bolt Circle Diameter: 440 mm (17.32in)
• Baffle Cutout Diameter: 422 mm (16.61in)
• Overall Depth: 202 mm (7.95in)
• Flange/Gasket Thickness: 14 mm (0.55in)
• Impedance: 8 ohm
• Minimum Impedance: 6.6 ohm
• AES Power: 1000 W
• Program Power: 2000 W
• Sensitivity: 98 dB
• Frequency Range: 38:2500 Hz
• Voice Coil Diameter: 100 mm (4in)
• Voice Coil Material: Al
• Voice Coil Former: Glass Fiber
• Voice Coil Depth: 22 mm (0.87in)
• Magnetic Gap Depth: 12 mm (0.47in)
• Surround Type: Triple
• Spider Profile: 2x non-adjacent symmetrical constant height waves
• Chassis Material: Aluminum
• Magnet Material: Neodymium Slug
• Demodulating Ring: No
• Flux Density: 1.3 T
• Driver Displacement Volume: 5.8 L (0.205ft^3)

Thiele and small parameters

• Resonance (Fs) - 38 Hz
• DC Resistance (Re) - 5.5 Ohm
• Electrical Q (Qes) - 0.43
• Mechanical Q (Qms) - 10.3
• Total Q (Qts) - 0.41
• Compliance Equivalent Volume (Vas) - 191.9 L
• Diaphragm Area (Sd) - 1212 cm²
• Maximum Linear Excursion (Xmax) - 9.00 mm
• Maximum Mechanical Excursion (Xdamage) - 17.5 mm
• Moving Mass - System (Mms) - 187.5 g
• Force Factor (BL) - 24.5 Tm
• Voice Coil Inductance (Le) - 1.26 mH
• Moving Mass - Diaphragm (Mmd) - 139.8 g
• Compliance (Cms) - 0.08 mm/N
• Mechanical Resistance (Rms) - 4.58 Kg/s
• Reference Efficiency (Eta Zero) - 2.49 %
• Efficiency Bandwidth Product (EBP) - 88

Shipping Information

• Net Weight: 6.7 kg (14.8lb)
• Shipping Weight: 7.8 kg (17.2lb)
• Shipping Box: 503 x 500 x 258 mm

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