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23_55_13_349_12ndl88rear_b_riscalata_0012ndl88front_riscalata12ndl88rear_riscalata
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
  • 50 - 3000 Hz response
  • 97 dB sensitivity
  • Aluminium demodulating ring allows a very low distortion figure
  • Double silicone spider with optimized compliance
  • Ventilated voice coil gap for reduced power compression

Specifications

  • Nominal Diameter320 mm (12.0 in)
  • Nominal Impedance4 Ω
  • Minimum Impedance3.8 Ω
  • Nominal Power Handling1700 W
  • Continuous Power Handling21400 W
  • Sensitivity397.0 dB
  • Frequency Range50 - 3000 Hz
  • Voice Coil Diameter88 mm (3.5 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 Enclosure40.0 dm3 (1.41 ft3)
  • Recommended Tuning65 Hz

Parameters4

  • Resonance Frequency48 Hz
  • Re3.1 Ω
  • Qes0.25
  • Qms6.8
  • Qts0.24
  • Vas57.0 dm3 (2.01 ft3)
  • Sd522.0 cm2 (80.91 in2)
  • η₀2.5 %
  • Xmax8.0 mm
  • Xvar11.0 mm
  • Mms73.6 g
  • Bl16.6 Txm
  • Le0.9 mH
  • EBP192 Hz

Mounting and Shipping Info

  • Overall Diameter315 mm (12.4 in)
  • Bolt Circle Diameter298 mm (11.73 in)
  • Baffle Cutout Diameter282.0 mm (11.1 in)
  • Depth140 mm (5.51 in)
  • Flange and Gasket Thickness13 mm (0.51 in)
  • Air Volume Occupied by Driver2.5 dm3 (0.08 ft3)
  • Net Weight4.8 kg (10.58 lb)
  • Shipping Units1
  • Shipping Weight5.7 kg (12.57 lb)
  • Shipping Box360x360x200 mm (14.17x14.17x7.87 in)

Service Kit

  • RCK12NDL884
  • 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.
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