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

Specifications

  • Nominal Diameter320 mm (12.0 in)
  • Nominal Impedance8 Ω
  • Minimum Impedance LF6.7 Ω
  • Minimum Impedance HF8.0 Ω
  • Frequency Range45 - 18000 Hz
  • Dispersion Angle160°x40° °
  • Magnet MaterialNeodymium Ring

Specifications LF Unit

  • LF Sensitivity299.0 dB
  • LF Nominal Power Handling3350 W
  • LF Continuous Power Handling4700 W
  • LF Voice Coil Diameter76 mm (3.0 in)
  • LF Winding MaterialCopper
  • LF Flux Density1.15 T
  • Former MaterialGlass Fibre
  • Winding Depth16.5 mm (0.65 in)
  • Magnetic Gap Depth8.0 mm (0.31 in)

Specifications HF Unit

  • HF Sensitivity5107.0 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 Frequency42 Hz
  • Re5.0 Ω
  • Qes0.2
  • Qms8.0
  • Qts0.19
  • Vas120.0 dm3 (4.2 ft3)
  • Sd522.0 cm2 (80.9 in2)
  • η₀4.1 %
  • Xmax4.0 mm
  • Xvar6.0 mm
  • Mms47 g
  • Bl17.6 Txm
  • Le0.8 mH
  • EBP210 Hz

Mounting And Shipping Info

  • Overall Diameter315 mm (12.4 in)
  • Bolt Circle Diameter298 mm (11.7 in)
  • Baffle Cutout Diameter283 mm (11.14 in)
  • Depth168 mm (6.6 in)
  • Flange and Gasket Thickness14 mm (0.55 in)
  • Net Weight5.2 kg (12.3 lb)
  • Shipping Units1
  • Shipping Weight6.5 kg (14.33 lb)
  • Shipping Box425x425x224 mm (16.73x16.73x8.82 in)

Service Kit

  • Service Kit LFRCK12HCX768
  • 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.