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4NDS34

4NDS34

LF Drivers 4.0 inches

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Datasheet
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15_41_34_426_4nds34rear_etc15_41_34_926_4nds34front
Continuous power handling
Voice coil diameter
Magnet material
Unique to B&C, a complete lineup of high sensitivity and power handling 4” frame transducers. These high technology products are made with our famously critical quality control, allowing new compact loudspeaker designs with appropriately scaled performance. The 4NDS34 features a 1.3” copper coil, 200W continuous power handling, and frequency response from 80 - 2000Hz.

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Features

  • 200 W continuous program power capacity
  • 34 mm (1.34 in) copper voice coil
  • 80 - 2000 Hz response
  • 89 dB sensitivity
  • Neodymium magnet allows a very light yet powerful motor assembly

Specifications

  • Nominal Diameter100 mm (3.94 in)
  • Nominal Impedance8 Ω
  • Minimum Impedance6.2 Ω
  • Nominal Power Handling1100 W
  • Continuous power handling2200 W
  • Sensitivity (1W/1m)389.0 dB
  • Frequency Range80 - 2000 Hz
  • Voice Coil Diameter34 mm (1.34 in)
  • Winding MaterialCopper
  • Former MaterialGlass Fibre
  • Winding Depth11.0 mm (0.43 in)
  • Magnetic Gap Depth7.0 mm (0.28 in)
  • Flux Density1.25 T

Design

  • Surround ShapeRoll
  • Cone ShapeExponential
  • Magnet MaterialNeodymium Inside Slug
  • SpiderSingle
  • Pole DesignT-Pole
  • Woofer Cone TreatmentTWP Waterproof Both Sides
  • Recommended Enclosure3.0 dm3 (0.11 ft3)
  • Recommended Tuning90 Hz

Parameters4

  • Resonance Frequency79 Hz
  • Re5.5 Ω
  • Qes0.25
  • Qms8.5
  • Qts0.24
  • Vas2.6 dm3 (0.09 ft3)
  • Sd57.0 cm2 (8.84 in2)
  • η₀0.5 %
  • Xmax± 3.8 mm
  • Xvar± 5.0 mm
  • Mms7.2 g
  • Bl8.8 Txm
  • Le0.21 mH
  • EBP316 Hz

Mounting and Shipping Info

  • Overall Diameter127 mm (5.0 in)
  • Bolt Circle Diameter114 mm (4.51 in)
  • Baffle Cutout Diameter103.0 mm (4.06 in)
  • Depth67 mm (2.64 in)
  • Flange and Gasket Thickness3 mm (0.12 in)
  • Air Volume Occupied by Driver0.25 dm3 (0.01 ft3)
  • Net Weight0.55 kg (1.21 lb)
  • Shipping Units1
  • Shipping Weight0.67 kg (1.48 lb)
  • Shipping Box117x120x110 mm (4.61x4.72x4.33 in)

Service Kit

  • 2 hours test made with continuous pink noise signal within the range Fs-10Fs. Power calculated on rated minumum 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.