Technical specifications

• Nominal Diameter: 300 mm (12in)
• Overall Diameter: 315.2 mm (12.44in)
• Bolt Circle Diameter: 298.5 mm (11.75in)
• Baffle Cutout Diameter: 283 mm (11.14in)
• Overall Depth: 140.6 mm (5.54in)
• Flange/Gasket Thickness: 12.1 mm (0.48in)
• Impedance: 4 ohm
• Minimum Impedance: 4 ohm
• AES Power: 300 W
• Program Power: 600 W
• Sensitivity: 97 dB
• Frequency Range: 50:5000 Hz
• Voice Coil Diameter: 65 mm (2.56in)
• Voice Coil Material: Al
• Voice Coil Former: Glass Fiber
• Voice Coil Depth: 12.5 mm (0.49in)
• Magnetic Gap Depth: 8 mm (0.31in)
• Surround Type: M-Roll
• Spider Profile: 1x variable height waves
• Chassis Material: Aluminum
• Magnet Material: Neodymium Slug
• Demodulating Ring: No
• Flux Density: 1.25 T
• Driver Displacement Volume: 1.9 L (0.067ft^3)

Thiele and small parameters

• Resonance (Fs) - 50 Hz
• DC Resistance (Re) - 3.3 Ohm
• Electrical Q (Qes) - 0.42
• Mechanical Q (Qms) - 19.4
• Total Q (Qts) - 0.41
• Compliance Equivalent Volume (Vas) - 73.9 L
• Diaphragm Area (Sd) - 533 cm²
• Maximum Linear Excursion (Xmax) - 4.92 mm
• Maximum Mechanical Excursion (Xdamage) - 14 mm
• Moving Mass - System (Mms) - 54.4 g
• Force Factor (BL) - 11.8 Tm
• Voice Coil Inductance (Le) - 0.46 mH
• Moving Mass - Diaphragm (Mmd) - 40.5 g
• Compliance (Cms) - 0.19 mm/N
• Mechanical Resistance (Rms) - 0.9 Kg/s
• Reference Efficiency (Eta Zero) - 2.21 %
• Efficiency Bandwidth Product (EBP) - 119

Shipping Information

• Net Weight: 2.5 kg (5.5lb)
• Shipping Weight: 3.3 kg (7.2lb)
• 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