Technical specifications

• Nominal Diameter: 300 mm (12in)
• Overall Diameter: 316 mm (12.44in)
• Bolt Circle Diameter: 298.5 mm (11.75in)
• Baffle Cutout Diameter: 282 mm (11.10in)
• Overall Depth: 145.1 mm (5.71in)
• Flange/Gasket Thickness: 17.1 mm (0.67in)
• Impedance: 8 ohm
• Minimum Impedance: 6.3 ohm
• AES Power: 500 W
• Program Power: 1000 W
• Sensitivity: 93 dB
• Frequency Range: 45:2500 Hz
• Voice Coil Diameter: 77 mm (3in)
• Voice Coil Material: Cu
• Voice Coil Former: Glass Fiber
• Voice Coil Depth: 22 mm (0.87in)
• Magnetic Gap Depth: 10.5 mm (0.41in)
• Surround Type: Half
• Spider Profile: 1x variable height waves
• Chassis Material: Aluminum
• Magnet Material: Ferrite Ring
• Demodulating Ring: No
• Flux Density: 1.2 T
• Driver Displacement Volume: 2.9 L (0.102ft^3)

Thiele and Small parameters:  Need some help? Read our quick guide to TS Params.

• Resonance (Fs) - 42 Hz
• DC Resistance (Re) - 5.1 Ohm
• Electrical Q (Qes) - 0.39
• Mechanical Q (Qms) - 6.9
• Total Q (Qts) - 0.37
• Compliance Equivalent Volume (Vas) - 45.4 L
• Diaphragm Area (Sd) - 528 cm²
• Maximum Linear Excursion (Xmax) - 9.25 mm
• Maximum Mechanical Excursion (Xdamage) - 20 mm
• Moving Mass - System (Mms) - 123 g
• Force Factor (BL) - 20.5 Tm
• Voice Coil Inductance (Le) - 1.5 mH
• Moving Mass - Diaphragm (Mmd) - 109.3 g
• Compliance (Cms) - 0.12 mm/N
• Mechanical Resistance (Rms) - 4.7 Kg/s
• Reference Efficiency (Eta Zero) - 0.83 %
• Efficiency Bandwidth Product (EBP) - 108

Shipping Information

• Net Weight: 8.1 kg (17.9lb)
• Shipping Weight: 8.8 kg (19.4lb)
• Shipping Box: 350 x 346 x 216 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