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18ds115%20000%20etc%200118ds115%20002
Continuous Power Handling
Voice Coil Diameter
Magnet Material

** Preliminary Data **

This next evolution subwoofer uses a new, longer, four layer aluminum voice coil. The result is more energy in the gap, higher sensitivity, lower distortion and better overall performance. The 18DS115 features a 40mm long, 4.5 inch diameter (116mm) Copper Clad Aluminum Wire voice coil. With a 1700watt AES power rating, 99db sensitivity, and over 14.0mm of Xvar, this high energy subwoofer is a significant step forward from similar models in the B&C range.

 
 
 
 

Key Features

  • 3400 W continuous program power capacity
  • 116 mm (4.5 in) split winding four layer aluminum voice coil
  • 30 - 500 Hz response
  • 98 dB sensitivity
  • 60 mm peak-to-peak excursion before damage
  • Neodymium magnet allows a very high force factor and linear excursion
  • Double silicone spider with optimized compliance
  • Ventilated voice coil gap for reduced power compression
  • Aluminium demodulating ring for very low distortion

Specifications

  • Nominal Diameter460 mm (18.0 in)
  • Nominal Impedance8 Ω
  • Minimum Impedance7.0 Ω
  • Nominal Power Handling11700 W
  • Continuous Power Handling23400 W
  • Sensitivity398.0 dB
  • Frequency Range30 - 500 Hz
  • Voice Coil Diameter116 mm (4.5 in)
  • Winding MaterialAluminium
  • Former MaterialGlass Fibre
  • Winding Depth40.0 mm (1.57 in)
  • Magnetic Gap Depth14.0 mm (0.55 in)
  • Flux Density0.8 T

Design

  • Surround ShapeTriple Roll
  • Cone ShapeRadial
  • Magnet MaterialNeodymium Inside Slug
  • SpiderDouble Silicone
  • Pole DesignT-Pole
  • Woofer Cone TreatmentTWP Waterproof Both Sides
  • Recommended Enclosure80.0 dm3 (2.83 ft3)
  • Recommended Tuning40 Hz

Parameters4

  • Resonance Frequency30 Hz
  • Re5.0 Ω
  • Qes0.21
  • Qms4.3
  • Qts0.2
  • Vas168.0 dm3 (5.93 ft3)
  • Sd1210.0 cm2 (187.55 in2)
  • η₀2.2 %
  • Xmax16.5 mm
  • Xvar14.0 mm
  • Mms330.0 g
  • Bl39.0 Txm
  • Le3.85 mH
  • EBP142 Hz

Mounting And Shipping Info

  • Overall Diameter460 mm (18.11 in)
  • Bolt Circle Diameter440 mm (17.32 in)
  • Baffle Cutout Diameter422.0 mm (16.61 in)
  • Depth248 mm (9.76 in)
  • Flange and Gasket Thickness16 mm (0.63 in)
  • Air Volume Occupied by Driver10.0 dm3 (0.35 ft3)
  • Net Weight12.0 kg (26.46 lb)
  • Shipping Units1
  • Shipping Weight13.6 kg (29.98 lb)
  • Shipping Box500x495x275 mm (19.69x19.49x10.83 in)

Service Kit

  • RCK18DS1158
  • 2 hours test made with continuous pink noise signal (6 dB crest factor) within the range Fs-10Fs. Power calculated on rated minimum 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.