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18_55_47_862_rear_b18_55_47_796_front18_55_47_632_17_58_11_929_14ndl88_00
Continuous power handling
Voice coil diameter
Magnet material

The NDL88 series is perfectly balanced for the loudspeaker systems of today. Incorporating a high temperature neodymium magnet inside the 3.5” (88mm) voice coil reduces the amount of steel needed in the motor structure, saving cost and weight. Unexpected low frequency output and midrange extension to meet with almost any driver for two way applications is the hallmark of this new performance-oriented woofer line from B&C Speakers. Do more, with less, with the NDL88 series.

 
 
 
 

Features

  • 1400 W continuous program power capacity
  • 88 mm (3.5 in) aluminium voice coil
  • 45 - 3000 Hz response
  • 98 dB sensitivity
  • Ventilated voice coil gap for reduced power compression
  • Aluminium demodulating ring allows a very low distortion figure
  • Double silicone spider for optimized compliance

Specifications

  • Nominal Diameter359 mm (14.0 in)
  • Nominal Impedance4 Ω
  • Minimum Impedance3.8 Ω
  • Nominal Power Handling1700 W
  • Continuous power handling21400 W
  • Sensitivity (1W/1m)398.0 dB
  • Frequency Range40 - 3000 Hz
  • Voice Coil Diameter88 mm (3.46 in)
  • Winding MaterialAluminium
  • Former MaterialGlass Fibre
  • Winding Depth21.5 mm (0.85 in)
  • Magnetic Gap Depth10.0 mm (0.39 in)
  • Flux Density1.15 T

Design

  • Surround ShapeTriple Roll
  • Cone ShapeExponential
  • Magnet MaterialNeodymium Inside Slug
  • SpiderDouble Silicone
  • Pole DesignT-Pole
  • Woofer Cone TreatmentWP Waterproof Front Side
  • Recommended Enclosure75.0 dm3 (2.65 ft3)
  • Recommended Tuning53 Hz

Parameters4

  • Resonance Frequency40 Hz
  • Re3.1 Ω
  • Qes0.24
  • Qms8.2
  • Qts0.23
  • Vas128.0 dm3 (4.52 ft3)
  • Sd707.0 cm2 (109.59 in2)
  • η₀3.2 %
  • Xmax± 8.0 mm
  • Xvar± 9.0 mm
  • Mms89.0 g
  • Bl16.9 Txm
  • Le0.85 mH
  • EBP166 Hz

Mounting and Shipping Info

  • Overall Diameter359 mm (14.13 in)
  • Bolt Circle Diameter343 mm (13.5 in)
  • Baffle Cutout Diameter323.0 mm (12.72 in)
  • Depth167 mm (6.57 in)
  • Flange and Gasket Thickness12 mm (0.47 in)
  • Air Volume Occupied by Driver3.5 dm3 (0.12 ft3)
  • Net Weight5.3 kg (11.68 lb)
  • Shipping Units1
  • Shipping Weight6.6 kg (14.55 lb)
  • Shipping Box425x425x224 mm (16.73x16.73x8.82 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 V for 4 ohms Nominal Impedance.
  • Thiele-Small parameters are measured after a high level 20 Hz sine wave preconditioning test.