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COLOSSUS 18XLS

Sub Bass Driver

Data Sheet
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£POA
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AVAILABILITY : OUT OF STOCK
  • DISCONTINUED. Available for SPECIAL ORDER / OEM only.
  • 250mm Diameter magnet structure.
  • Low interference flux path.
  • Fibre loaded UK manufactured cone.
  • 64 mm peak to peak maximum linear excursion.
  • 24.5 T/m BL.
  • Fast, accurate and controlled bass at high levels of excursion.
  • Intended for bass reflex and scoop enclosure designs.

The Colossus 18XLS features a 4-inch, inside / outside windings, copper voice coil and is intended for use as a high output bass driver in multi way systems. The coil is immersed in a symmetric magnetic field that yields increased linearity and lower distortion. This, coupled with laminated silicone suspensions, a large Xmax of 12.5 mm with peak to peak travel of 60 mm, ensures fast accurate bass at high levels of excursion. The cone membrane, manufactured from polycellulose, is much stronger and more durable than conventional paper pulp alternatives. This allows the driver to combine high-sensitivity with the structural integrity required to produce undistorted low frequencies at extreme sound pressure levels. Thanks to advanced thermal management the vented die-cast chassis and increased motor system venting effectively remove heat from the voice coil, resulting in extremely low-power compression. The driver handles 1200 Watts (A.E.S.) continuous coping with peaks in excess of 4800 Watts, exhibiting 97 dB sensitivity over its working band.

 

  • Please enquire about alternative impedances.
  • A.E.S. power handling test. Pink noise bandpass filtered at 12 dB per octave with cutoff frequencies of 30 Hz and 300 Hz. Driver mounted in free air, test signal applied at rated power for two hours.
  • Please note that the frequency response measurements are supplied for comparison only and are not a measure of the low frequency performance which may be achieved in a fully optimised system.
Electro Acoustic Specifications
Nominal Chassis Diameter 18" / 457.2 mm
Impedance 8 Ω
Power Handling 1200 W (A.E.S.)
Peak Power (6dB Crest Factor) 4800 W (A.E.S.)
Usable Frequency Range (-6dB) 28 Hz - 500 Hz
Sensitivity (1W - 1m) 97 dB
Moving Mass (inc. Air Load) 209 grams
Minimum Impedance (Zmin) 7.44 Ω
Effective Piston Diameter 15.43" / 391.92 mm
Magnet Weight 165.78 oz
Magnetic Gap Depth 0.47" / 12 mm
Flux Density 1.1 Tesla
Coil Winding Height 1.18" / 30 mm
Voice Coil Diameter 4.0" / 101.6 mm
Speaker Type Sub Bass Driver
Thiele Small Parameters (TSPs)
FS 36 Hz
Re 5.2 Ω
QMS 13.61
QES 0.42
QTS 0.4
Vas 187 Litres
Vd 1.56 Litres
CMS 0.09 mm/N
BL 24.5 T/m
MMS 209 grams
Xmax 12.5 mm
Sd 1210 cm2
Efficiency 2.00%
Le 1.5 mH
EBP 85.71 Hz
Materials of Construction
Coil Former Material Resin Bonded Glass Fibre
Voice Coil Material Copper - Inside/ Outside Windings
Magnet Material Ferrite
Chassis Material Die-cast Aluminium
Cone Material Straight Polycellulose Ribbed Cone
Surround / Edge Termination Multi Roll Polyvinyl Damped Fabric
Dust Dome Material Paper
Connectors Push-button Spring Terminals
Polarity Positive voltage at red terminal causes forward motion of cone
Mounting / Shipping Information
Overall Diameter 19.1" / 485.14 mm
Width Across Flats 18" / 457.2 mm
Flange Height 0.465" / 11.8 mm
Baffle Hole Diameter F/M 16.53" / 419.86 mm
Baffle Hole Diameter R/M 16.33" / 414.78 mm
Gasket Supplied Front & Rear
Outer Fixing Holes 8x ø 7 mm on 468 mm PCD
Inner Fixing Holes 8x . 7 mm on 438.15 mm PCD
Depth 8.66" / 220 mm
Weight 36.95 lb / 16.76 Kg
Recommended Enclosure Volume 125 - 210 Litres
Shipping Weight 39.8 lb / 18.05 Kg
Packing Carton Dimensions (W) 512 (D) 512 (H) 244 mm
DescriptionSizeFormatGet File
Fane Colossus 18XLS Datasheet0.31Mb.pdfDOWNLOAD
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