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12nbx100rearFile12nbx100rear_b
Continuous Power Handling
Voice Coil Diameter
Magnet Material
 
 
 
 

Specifications

  • Nominal Diameter320 mm (12.0 in)
  • Nominal Impedance4 Ω
  • Minimum Impedance4.5 Ω
  • Nominal Power Handling11000 W
  • Continuous Power Handling22000 W
  • Sensitivity394.0 dB
  • Frequency Range40 - 1500 Hz
  • Voice Coil Diameter100 mm (4.0 in)
  • Winding MaterialCopper
  • Former MaterialGlass Fibre
  • Winding Depth25 mm (1.0 in)
  • Magnetic Gap Depth11 mm (0.43 in)
  • Flux Density1.1 T

Design

  • Surround ShapeTriple Roll
  • Cone ShapeExponential
  • Magnet MaterialNeodymium Ring
  • SpiderDouble Silicone
  • Pole DesignT-Pole
  • Woofer Cone TreatmentTWP Waterproof Both Sides
  • Recommended Enclosure40.0 dm3 (1.41 ft3)
  • Recommended Tuning50 Hz

Parameters4

  • Resonance Frequency40 Hz
  • Re3.6 Ω
  • Qes0.23
  • Qms7.05
  • Qts0.22
  • Vas46.5 dm3 (1.64 ft3)
  • Sd531.0 cm2 (82.0 in2)
  • η₀1.27 %
  • Xmax10.0 mm
  • Xvar10.0 mm
  • Mms133 g
  • Bl23.04 Txm
  • Le1.35 mH
  • EBP173 Hz

Mounting And Shipping Info

  • Overall Diameter320 mm (12.6 in)
  • Bolt Circle Diameter300 mm (11.8 in)
  • Baffle Cutout Diameter280.0 mm (11.0 in)
  • Depth143 mm (5.63 in)
  • Flange and Gasket Thickness12 mm (0.47 in)
  • Air Volume Occupied by Driver4.0 dm3 (0.14 ft3)
  • Net Weight8.0 kg (17.6 lb)
  • Shipping Units1
  • Shipping Weight8.9 kg (19.62 lb)
  • Shipping Box360x360x200 mm (14.17x14.17x7.87 in)

Service Kit

  • RCK12NBX1004
  • 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.