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

Key Features

  • 300 W continuous program power capacity
  • 70° nominal coverage
  • 90 - 18000 Hz response
  • 92 dB sensitivity
  • Single Neodymium magnet assembly
  • 20.1 mm (0.79”) HF unit exit diameter

Specifications

  • Nominal Diameter170 mm (6.5 in)
  • Nominal Impedance8 Ω
  • Minimum Impedance LF6.0 Ω
  • Minimum Impedance HF7.5 Ω
  • Frequency Range90 - 18000 Hz
  • Dispersion Angle170 °
  • Magnet MaterialNeodymium Ring

Specifications LF Unit

  • LF Sensitivity292.0 dB
  • LF Nominal Power Handling3150 W
  • LF Continuous Power Handling4300 W
  • LF Voice Coil Diameter51 mm (2.0 in)
  • LF Winding MaterialCopper
  • LF Flux Density1.1 T
  • Former MaterialKapton
  • Winding Depth13.0 mm (0.51 in)
  • Magnetic Gap Depth6.0 mm (0.24 in)

Specifications HF Unit

  • HF Sensitivity5105.0 dB
  • HF Nominal Power Handling625 W
  • HF Continuous Power Handling750 W
  • HF Voice Coil Diameter36 mm (1.4 in)
  • HF Winding MaterialAluminium
  • HF Flux Density1.8 T
  • Diaphragm MaterialPolyester
  • Recommended Crossover82.2 kHz
  • Inductance0.06 mH

Parameters

  • Resonance Frequency89 Hz
  • Re5.2 Ω
  • Qes0.4
  • Qms7.5
  • Qts0.38
  • Vas5.0 dm3 (0.18 ft3)
  • Sd132.0 cm2 (20.5 in2)
  • η₀0.8 %
  • Xmax5.0 mm
  • Xvar5.5 mm
  • Mms16.0 g
  • Bl10.9 Txm
  • Le0.8 mH
  • EBP222 Hz

Mounting And Shipping Info

  • Overall Diameter187 mm (7.4 in)
  • Bolt Circle Diameter172 mm (6.7 in)
  • Baffle Cutout Diameter146 mm (5.75 in)
  • Depth104 mm (4.1 in)
  • Flange and Gasket Thickness11 mm (0.4 in)
  • Net Weight1.55 kg (3.4 lb)
  • Shipping Units1
  • Shipping Weight2.0 kg (4.41 lb)
  • Shipping Box255x255x150 mm (10.04x10.04x5.91 in)

Service Kit

  • Service Kit LFRCK06HCX518
  • Replacement diaphragmMMD0128
  • 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.
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