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11_01_54_416_17_58_11_929_14ndl88_0011_01_54_418_front11_01_54_471_rear_b
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 - 3500 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 Impedance16 Ω
  • Minimum Impedance12.5 Ω
  • Nominal Power Handling1700 W
  • Continuous Power Handling21400 W
  • Sensitivity398.0 dB
  • Frequency Range45 - 3500 Hz
  • Voice Coil Diameter88 mm (3.5 in)
  • Winding MaterialAluminium
  • Former MaterialGlass Fibre
  • Winding Depth21.0 mm (0.83 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 Frequency44 Hz
  • Re11.0 Ω
  • Qes0.39
  • Qms10.6
  • Qts0.37
  • Vas115.0 dm3 (4.06 ft3)
  • Sd707.0 cm2 (109.59 in2)
  • η₀2.45 %
  • Xmax7.5 mm
  • Xvar9.5 mm
  • Mms79.5 g
  • Bl25.0 Txm
  • Le2.05 mH
  • EBP112 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 Weight4.7 kg (10.36 lb)
  • Shipping Units1
  • Shipping Weight6.0 kg (13.23 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 4 V for 16 ohm Nominal Impedance.
  • Thiele-Small parameters are measured after a high level 20 Hz sine wave preconditioning test.
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