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COLOSSUS 18SB

Sub Bass Driver

Data Sheet
(2 Reviews)  Review this item
£POA
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AVAILABILITY : IN STOCK
  • 2000 W Program Power.
  • 100 dB Sensitivity (1W/1m).
  • Chassis and motor system venting provides efficient thermal management and extremely low power compression.
  • Dual silicone laminated suspension system combined with optimised software materials offers increased linearity for tight, punchy bass reproduction at extreme SPL.
  • Fibre loaded, UK manufactured cone offering increased strength, durability and performance.
  • Optimised for ported enclosures, delivering bass down to 35 Hz in a 200 Litre enclosure.
  • 4-inch Inside/ outside windings copper voice coil.

The Colossus 18SB is intended for use as a high-output bass driver in multi way systems. It features a 4 inch 'sandwich' inside and outside windings voice coil, immersed in a symmetric magnetic field yielding increased linearity and lower distortion. This, coupled with a large Xmax of 8.25 mm and laminated silicone suspension, ensures tight, punchy 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. 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 vented die-cast chassis and increased motor system venting. These measures effectively remove heat from the voice coil, resulting in extremely low-power compression. The Colossus 18SB exhibits 100 dB sensitivity and can deliver bass down to 35 Hz (-6 dB) in a 200 Litre ported enclosure.

 

  • 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 1000 W (A.E.S.)
Peak Power (6dB Crest Factor) 4000 W (A.E.S.)
Usable Frequency Range (-6dB) 35 Hz - 2.5 kHz
Sensitivity (1W - 1m) 100 dB
Moving Mass (inc. Air Load) 177 grams
Minimum Impedance (Zmin) 6.5 Ω
Effective Piston Diameter 14.84" / 376.93 mm
Magnet Weight 120 oz
Magnetic Gap Depth 0.43" / 11 mm
Flux Density 1.1 Tesla
Coil Winding Height 0.87" / 22 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 6.583
QES 0.366
QTS 0.346
Vas 199 Litres
Vd 0.893 Litres
CMS 0.109 mm/N
BL 24 T/m
MMS 177.2 grams
Xmax 8.25 mm
Sd 1134 cm2
Efficiency 2.49%
Le 2.23 mH
EBP 98.36 Hz
Materials of Construction
Coil Former Material Glass Fibre
Voice Coil Material Copper - Inside / Outside Windings
Magnet Material Ferrite
Chassis Material Die-cast Aluminium
Cone Material Curvilinear Polycellulose
Surround / Edge Termination Polyvinyl Damped Multi Roll. Poly Cotton
Dust Dome Material Solid 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 mm
Width Across Flats 18" / 457 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 0.275" on 18.425" PCD / 8x ø 7 mm on 468 mm PCD
Inner Fixing Holes 8x ø 0.275" on 17.25" PCD / 8x ø 7 mm on 438.15 mm PCD
Depth 7.91" / 201 mm
Weight 27.6 lb / 12.51 Kg
Recommended Enclosure Volume 4.41 - 14.12 cu ft /125 - 400 Litres
Shipping Weight 28.9 lb / 13.1 Kg
Packing Carton Dimensions (W) 485 (D) 485 (H) 230 mm
Fane Colossus 18 SB replaces NEXO N1826B
Reviewer / FromGermany / Date07 Mar 2017
After two Nexo's N1826B were shot at an event, we were looking for a price alternative. This we have now thomann tested at a weekend event and were very enthusiastic about the result. If it is, we will also replace our other 18 "with this type. Note: I once had 20 years ago 2 FANE Crecendo 12", which I once later as MID-Bin screwed into my HK-Projector. Here I thomann got much more presence in the MID area. FANE is already an old manufacturer of its quality always remained true!
Bestbuy
ReviewerAndras / FromEngland / Date02 Apr 2015
This speaker is a well kept secret. We have our own design with this item, and everybody likes the end thomann result. Deep, well defined bass. Nice built quality. Very sensitive.
DescriptionSizeFormatGet File
Fane Colossus 18SB Datasheet0.19Mb.pdfDOWNLOAD
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