The Colossus 18XB is intended for use as a high-output sub-bass driver either singly or in multi way systems. The unit features a 4 inch 'sandwich' inside and outside windings voice coil, immersed in a symmetric magnetic field and centralized by using two suspensions in a dual arrangement to maintain ultra linearity and stability at high excursions. The heavily ribbed straight-sided paper cone membrane is reinforced with high-strength composite fibres to resist deformation under extreme loads. The driver handles 1000 Watts (A.E.S.) continuous and can cope with peaks in excess of 4000 Watts. This is due to advanced thermal management in the form of a vented die-cast chassis and motor system using an internal heatsink coupled to a large vaned heatsink mounted on the rear of the unit. These measures effectively remove heat from the voice coil resulting in extremely low-power compression. The Colossus 18XB is designed for use in 100 to 250 Litre ported enclosures.


Electro Acoustic Specifications
Nominal Chassis Diameter18" / 457.2 mm
Impedance4 /8 /16 Ω
Power Handling1000 W (A.E.S.)
Peak Power (6dB Crest Factor)4000 W (A.E.S.)
Usable Frequency Range (-6dB)35 Hz - 1 kHz
Sensitivity (1W - 1m)99 dB
Moving Mass (inc. Air Load)173 grams
Minimum Impedance (Zmin)6.5 Ω
Effective Piston Diameter15.03" / 381.76 mm
Magnet Weight120 oz
Magnetic Gap Depth0.39" / 10 mm
Flux Density1.2 Tesla
Coil Winding Height0.90" / 23 mm
Voice Coil Diameter4.0" / 101.6 mm
Speaker TypeSub Bass Driver
Thiele Small Parameters (TSPs)
FS33 Hz
Re6.5 Ω
QMS5.77
QES0.358
QTS0.337
Vas236 Litres
Vd0.803 Litres
CMS0.13 mm/N
BL25.9 T/m
MMS173 grams
Xmax7.5 mm
Sd1131 cm2
Efficiency2.3%
Le1.99 mH
EBP92.18 Hz
Materials of Construction
Coil Former MaterialGlass Fibre
Voice Coil MaterialCopper - Inside / Outside Windings
Magnet MaterialFerrite
Chassis MaterialDie-cast Aluminium
Cone MaterialStraight Polycellulose Ribbed Cone
Surround / Edge TerminationPolyvinyl Damped Multi Roll. Poly Cotton
Dust Dome MaterialPaper
ConnectorsPush-button Spring Terminals
PolarityPositive voltage at red terminal causes forward motion of cone
Mounting / Shipping Information
Overall Diameter19.1" / 485 mm
Width Across Flats18" / 457 mm
Flange Height0.465" / 11.8 mm
Baffle Hole Diameter F/M16.53" / 419.86 mm
Baffle Hole Diameter R/M16.33" / 414.78 mm
Gasket SuppliedFront & Rear
Outer Fixing Holes8x ø 0.275" on 18.425" PCD / 8x ø 7 mm on 468 mm PCD
Inner Fixing Holes8x ø 0.275" on 17.25" PCD / 8x ø 7 mm on 438.15 mm PCD
Depth8.05" / 205 mm
Weight31.29 lb / 14.2 Kg
Recommended Enclosure Volume3.53 - 8.82 cu ft / 125 - 400 Litres


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Fane colossus 18xb 18" 1000w loose speaker

  • Brand: FANE
  • Product Code: COLOSSUS18XB
  • Availability: In Stock
  • R3,390.00

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