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Diaphragm Material
Magnet Material
LF Voice Coil Diameter
HF Voice Coil Diameter
LF Nominal Power Handling
 
 
 
 
 
 
 

Specifications

  • Nominal Diameter380 mm (15.0 in)
  • Nominal Impedance8 Ω
  • Minimum Impedance LF6.0 Ω
  • Minimum Impedance HF7.8 Ω
  • Frequency Range40 - 18000 Hz
  • Dispersion Angle180 °
  • Magnet MaterialCeramic

Specifications LF Unit

  • LF Sensitivity298.0 dB
  • LF Nominal Power Handling3400 W
  • LF Continuous Power Handling4800 W
  • LF Voice Coil Diameter76 mm (3.0 in)
  • LF Winding MaterialCopper
  • LF Flux Density1.0 T
  • Former MaterialGlass Fibre
  • Winding Depth16.5 mm (0.65 in)
  • Magnetic Gap Depth8.0 mm (0.31 in)

Specifications HF Unit

  • HF Sensitivity5105.0 dB
  • HF Nominal Power Handling680 W
  • HF Continuous Power Handling7160 W
  • HF Voice Coil Diameter75 mm (3.0 in)
  • HF Winding MaterialAluminium
  • HF Flux Density1.9 T
  • Diaphragm MaterialTitanium
  • Recommended Crossover81.2 kHz
  • Inductance0.14 mH

Parameters

  • Resonance Frequency40 Hz
  • Re5.2 Ω
  • Qes0.47
  • Qms8.3
  • Qts0.44
  • Vas187.0 dm3 (6.6 ft3)
  • Sd855.0 cm2 (132.5 in2)
  • η₀2.5 %
  • Xmax6.5 mm
  • Xvar7.5 mm
  • Mms87 g
  • Bl15.6 Txm
  • Le1.2 mH
  • EBP85 Hz

Mounting And Shipping Info

  • Overall Diameter393 mm (15.5 in)
  • Bolt Circle Diameter374 mm (16.7 in)
  • Baffle Cutout Diameter353 mm (13.9 in)
  • Depth199 mm (7.83 in)
  • Flange and Gasket Thickness16 mm (0.62 in)
  • Net Weight9.0 kg (19.8 lb)
  • Shipping Units1
  • Shipping Weight10.6 kg (23.37 lb)
  • Shipping Box500x495x275 mm (19.69x19.49x10.83 in)

Service Kit

  • Service Kit LFRCK15FCX768
  • Replacement diaphragmMMD3BTN8M
  • Included by –6 dB down points.
  • Applied RMS Voltage is set to 2.83V.
  • 2 hours test made with continuous pink noise signal (6 dB crest factor) within the range Fs-10Fs. Power calculated on rated minimum impedance. Loudspeaker in free air.
  • Power on Continuous Program is defined as 3 dB greater than the Nominal rating.
  • Applied RMS Voltage is set to 2.83V.
  • 2 hour test made with continuous pink noise signal (6 dB crest factor) within the range from the recommended crossover frequency to 20 kHz. Power calculated on rated minimum impedance. Loudspeaker in free air.
  • Power on Continuous Program is defined as 3 dB greater than the Nominal rating.
  • 12 dB/oct. or higher slope high-pass filter.