Technical specifications

• Nominal Diameter: 380 mm (15in)
• Overall Diameter: 393 mm (15.47in)
• Bolt Circle Diameter: 374 mm (14.72in)
• Baffle Cutout Diameter: 356 mm (14.02in)
• Overall Depth: 165 mm (6.50in)
• Flange/Gasket Thickness: 13.1 mm (0.52in)
• Impedance: 4 ohm
• Minimum Impedance: 3.7 ohm
• AES Power: 400 W
• Program Power: 800 W
• Sensitivity: 99 dB
• Frequency Range: 35:4000 Hz
• Voice Coil Diameter: 77 mm (3in)
• Voice Coil Material: Al
• Voice Coil Former: Glass Fiber
• Voice Coil Depth: 15 mm (0.59in)
• Magnetic Gap Depth: 10.5 mm (0.41in)
• Surround Type: Accordion
• Spider Profile: 1x constant height waves
• Chassis Material: Aluminum
• Magnet Material: Neodymium Slug
• Demodulating Ring: No
• Flux Density: 1.15 T
• Driver Displacement Volume: 3.7 L (0.131ft^3)

Thiele and small parameters

• Resonance (Fs) - 35 Hz
• DC Resistance (Re) - 3.3 Ohm
• Electrical Q (Qes) - 0.33
• Mechanical Q (Qms) - 6.0
• Total Q (Qts) - 0.31
• Compliance Equivalent Volume (Vas) - 248.9 L
• Diaphragm Area (Sd) - 857 cm²
• Maximum Linear Excursion (Xmax) - 5.75 mm
• Maximum Mechanical Excursion (Xdamage) - 15.5 mm
• Moving Mass - System (Mms) - 85.2 g
• Force Factor (BL) - 13.6 Tm
• Voice Coil Inductance (Le) - 0.6 mH
• Moving Mass - Diaphragm (Mmd) - 56.8 g
• Compliance (Cms) - 0.24 mm/N
• Mechanical Resistance (Rms) - 3.1 Kg/s
• Reference Efficiency (Eta Zero) - 3..10 %
• Efficiency Bandwidth Product (EBP) - 106

Shipping Information

• Net Weight: 3.6 kg (7.9lb)
• Shipping Weight: 4.7 kg (10.4lb)
• Shipping Box: 430 x 427 x 236 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