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FileFile18tbw100rear_b_
Continuous Power Handling
Voice Coil Diameter
Magnet Material
 
 
 
 

Specifications

  • Nominal Diameter460 mm (18.0 in)
  • Nominal Impedance4 Ω
  • Minimum Impedance4.0 Ω
  • Nominal Power Handling11500 W
  • Continuous Power Handling23000 W
  • Sensitivity396.0 dB
  • Frequency Range35 - 1000 Hz
  • Voice Coil Diameter100 mm (4.0 in)
  • Winding MaterialCopper
  • Former MaterialGlass Fibre
  • Winding Depth31 mm (1.22 in)
  • Magnetic Gap Depth15 mm (0.59 in)
  • Flux Density1.15 T

Design

  • Surround ShapeTriple Roll
  • Cone ShapeRadial
  • Magnet MaterialFerrite
  • SpiderDouble Silicone
  • Pole DesignT-Pole
  • Woofer Cone TreatmentTWP Waterproof Both Sides
  • Recommended Enclosure200.0 dm3 (7.06 ft3)
  • Recommended Tuning32 Hz

Parameters4

  • Resonance Frequency33 Hz
  • Re3.2 Ω
  • Qes0.34
  • Qms6.23
  • Qts0.32
  • Vas181.5 dm3 (6.41 ft3)
  • Sd1210.0 cm2 (187.6 in2)
  • η₀1.8 %
  • Xmax12.0 mm
  • Xvar14.0 mm
  • Mms268 g
  • Bl22.8 Txm
  • Le1.64 mH
  • EBP97 Hz

Mounting And Shipping Info

  • Overall Diameter460 mm (18.0 in)
  • Bolt Circle Diameter442 mm (17.4 in)
  • Baffle Cutout Diameter422.0 mm (16.6 in)
  • Depth241 mm (9.5 in)
  • Flange and Gasket Thickness16 mm (0.61 in)
  • Air Volume Occupied by Driver11.0 dm3 (0.39 ft3)
  • Net Weight15.1 kg (33.3 lb)
  • Shipping Units1
  • Shipping Weight16.7 kg (36.82 lb)
  • Shipping Box500x495x275 mm (19.69x19.49x10.83 in)

Service Kit

  • RCK18TBW1004
  • 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 2V for 4 ohms Nominal Impedance.
  • Thiele-Small parameters are measured after a high level 20 Hz sine wave preconditioning test.