B&C Speakers 15NDL88

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.

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

SPECIFICATIONS

• Nominal Diameter  380 mm (15.0 in)
• Nominal Impedance  4 Ω
• Minimum Impedance  3.7 Ω
• Nominal Power Handling  700 W 
• Continuous Power Handling  1400 W
• Sensitivity  99.0 dB
• Frequency Range  45 - 3000 Hz
• Voice Coil Diameter  88 mm (3.5 in)
• Winding Material  Aluminium
• Former Material  Glass Fibre
• Winding Depth  21.0 mm (0.85 in)
• Magnetic Gap Depth  10.0 mm (0.4 in)
• Flux Density  1.15 T

DESIGN

• Surround Shape  Triple Roll
• Cone Shape  Exponential
• Magnet Material  Neodymium Inside Slug
• Spider  Double Silicone
• Pole Design  T-Pole
• Woofer Cone Treatment  WP Waterproof Front Side
• Recommended Enclosure  125.0 dm3 (4.41 ft 3)
• Recommended Tuning  45 Hz

PARAMETERS

• Resonance Frequency  41 Hz
• Re  3.0 Ω
• Qes  0.29
• Qms  7.5
• Qts  0.28
• Vas  154.0 dm3 (5.44 ft 3)
• Sd  855.0 cm2 (132.53 in 2)
• η₀  3.5 %
• Xmax  8.0 mm
• Xvar  10.0 mm
• Mms  102.0 g
• Bl  16.5 Txm
• Le  0.9 mH
• EBP  141 Hz

MOUNTING AND SHIPPING INFO

• Overall Diameter  393 mm (15.47 in)
• Bolt Circle Diameter  374 mm (14.72 in)
• Baffle Cutout Diameter  354.0 mm (13.94 in)
• Depth  177 mm (6.97 in)
• Flange and Gasket Thickness  13 mm (0.5 in)
• Air Volume Occupied by Driver  3.5 dm3 (0.12 ft 3)
• Net Weight  4.6 kg (7.0 lb)
• Shipping Units  1
• Shipping Weight  5.9 kg (13.01 lb)
• Shipping Box  425x425x224 mm (16.73x16.73x8.82 in)