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4%20ndf%2034%20%28a%294%20ndf%2034%20%28c%294%20ndf%2034%20%28b%29
Continuous Power Handling
Voice Coil Diameter
Magnet Material
OEM Quantities only...
 
 
 

Key Features

  • 200 W continuous program power capacity
  • 34 mm (1.3 in) copper voice coil
  • 110 - 8000 Hz response
  • 88 dB sensitivity
  • Neodymium magnet allows a very light yet powerful motor assembly

Specifications

  • Nominal Diameter100 mm (4.0 in)
  • Nominal Impedance8 Ω
  • Minimum Impedance6.4 Ω
  • Nominal Power Handling1100 W
  • Continuous Power Handling2200 W
  • Sensitivity388.0 dB
  • Frequency Range110 - 8000 Hz
  • Voice Coil Diameter34 mm (1.3 in)
  • Winding MaterialCopper
  • Former MaterialGlass Fibre
  • Winding Depth11.0 mm (0.43 in)
  • Magnetic Gap Depth7.0 mm (0.28 in)
  • Flux Density1.35 T

Design

  • Surround ShapeDouble Roll
  • Cone ShapeExponential
  • Magnet MaterialNeodymium Inside Slug
  • SpiderSingle
  • Pole DesignT-Pole
  • Woofer Cone TreatmentNone

Parameters4

  • Resonance Frequency110 Hz
  • Re5.5 Ω
  • Qes0.27
  • Qms4.2
  • Qts0.28
  • Vas1.6 dm3 (0.06 ft3)
  • Sd57.0 cm2 (8.84 in2)
  • η₀0.7 %
  • Xmax3.8 mm
  • Xvar5.7 mm
  • Mms6.0 g
  • Bl9.0 Txm
  • Le0.23 mH
  • EBP407 Hz

Mounting And Shipping Info

  • Overall Diameter127 mm (5.0 in)
  • Bolt Circle Diameter115 mm (4.53 in)
  • Baffle Cutout Diameter103.0 mm (4.06 in)
  • Depth66 mm (2.6 in)
  • Flange and Gasket Thickness1 mm (0.04 in)
  • Air Volume Occupied by Driver0.25 dm3 (0.01 ft3)
  • Net Weight0.54 kg (1.19 lb)
  • Shipping Units24
  • Shipping Weight13.1 kg (28.88 lb)
  • Shipping Box425x335x250 mm (16.73x13.19x9.84 in)

Service Kit

  • RCK04NDF34
  • 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 2.83 V for 8 ohms Nominal Impedance.
  • Thiele-Small parameters are measured after a high level 20 Hz sine wave preconditioning test.