Technical specifications

• Nominal Diameter: 300 mm (12in)
• Overall Diameter: 316 mm (12.44in)
• Bolt Circle Diameter: 298.5 mm (11.75in)
• Baffle Cutout Diameter: 284 mm (11.18in)
• Overall Depth: 155.75 mm (6.13in)
• Flange/Gasket Thickness: 12.45 mm (0.49in)
• Impedance: 4 ohm
• Minimum Impedance: 4 ohm
• AES Power: 500 W
• Program Power: 1000 W
• Sensitivity: 97 dB
• Frequency Range: 45:4000 Hz
• Voice Coil Diameter: 77 mm (3in)
• Voice Coil Material: Al
• Voice Coil Former: Glass Fiber
• Voice Coil Depth: 18 mm (0.71in)
• Magnetic Gap Depth: 10.5 mm (0.41in)
• Surround Type: M-Roll
• Spider Profile: 1x variable height waves
• Chassis Material: Aluminum
• Magnet Material: Neodymium Slug
• Demodulating Ring: No
• Flux Density: 1.2 T
• Driver Displacement Volume: 2.3 L (0.081ft^3)

Thiele and small parameters

• Resonance (Fs) - 45 Hz
• DC Resistance (Re) - 3.3 Ohm
• Electrical Q (Qes) - 0.23
• Mechanical Q (Qms) - 9.09
• Total Q (Qts) - 0.22
• Compliance Equivalent Volume (Vas) - 80.3 L
• Diaphragm Area (Sd) - 529 cm²
• Maximum Linear Excursion (Xmax) - 7.25 mm
• Maximum Mechanical Excursion (Xdamage) - 16 mm
• Moving Mass - System (Mms) - 60.9 g
• Force Factor (BL) - 15.5 Tm
• Voice Coil Inductance (Le) - 0.63 mH
• Moving Mass - Diaphragm (Mmd) - 47.1 g
• Compliance (Cms) - 0.21 mm/N
• Mechanical Resistance (Rms) - 1.9 Kg/s
• Reference Efficiency (Eta Zero) - 3.00 %
• Efficiency Bandwidth Product (EBP) - 196

Shipping Information

• Net Weight: 3.9 kg (8.6lb)
• Shipping Weight: 4.7 kg (10.4lb)
• 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