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This model was originally designated with a factory Part Number: FC-154F01.
This product is now end of line -we have only one left in stock
The Colossus 15SB is intended for use in two-way ported enclosures or as an high output bass driver in multi-way systems. The unit features a 4 inch 'sandwich' inside and outside windings voice coil driven by a non-inductive motor system which dramatically reduces third-harmonic and intermodulation distortion. The cone membrane is state of the art material that allows the driver to combine high sensitivity with the structural integrity required to produce undistorted frequencies at high output levels. The mechanical and electrical properties of the unit have been carefully optimised to allow extended low frequency output up to its rated power handling of 800 Watts (A.E.S) continuous, with peak power handling in excess of 3200 Watts. The driver exhibits an average sensitivity of 99 dB working band and is best used in ported enclosures of 45 to 125 Litres. The 15SB can deliver bass down to 40 Hz (-3dB), 30 Hz (-6dB) in a tuned 125 Litre ported enclosure.
- 1600 W Program Power.
- 99 dB Sensitivity (1W/1m).
- Offers high SPL and attack in two-way ported enclosures.
- Optimised non-inductive motor system efficiently controls magnetic flux and reduces third-harmonic and intermodulation distortion.
- Dynamic, smooth and detailed low frequency reproduction.
- Best suited for use in bass reflex enclosures, delivering bass down to 30Hz (-6dB) in a 125 Litre enclosure.
- Can also be used well in horn loaded enclosure designs.
- 4-inch Inside/ outside windings CCAW voice coil.
- Waterproof cone.
This product has been discontinued - please do not try to order this item we will not be able to supply it - the product details are here for reference only. Please contact a member of staff, and we may be able to find an equivalent product for you.
Electro Acoustic Specifications
- Nominal Chassis Diameter 15" / 381 mm
- Impedance 8 Ohms
- Power Handling 800 W (A.E.S.)
- Peak Power (6dB Crest Factor) 3200 W (A.E.S.)
- Usable Frequency Range (-6dB) 40 Hz - 3 kHz
- Sensitivity (1W - 1m) 99 dB
- Moving Mass (inc. Air Load) 10 grams
- Minimum Impedance (Zmin) 7.3 Ω
- Effective Piston Diameter 13" / 330.2 mm
- Magnet Weight 120 oz
- Magnetic Gap Depth 0.43" / 11 mm
- Flux Density 1.1 Tesla
- Coil Winding Height 0.75" / 19.05 mm
- Voice Coil Diameter 4.0" / 101.6 mm
- Speaker Type Bass Driver
Thiele Small Parameters:
- FS 41 Hz
- Re 5.4 Ohms
- QMS 6.85
- QES 0.3
- QTS 0.29
- Vas 151 Litres
- Vd 0.56 Litres
- CMS 0.142 mm/N
- BL 22.5 T/m
- MMS 106 grams
- Xmax 6.5 mm
- Sd 866 cm2
- Efficiency 3.34%
- Le 2.15 mH
Materials of Construction:
- Coil Former Material Glass Fibre
- Voice Coil Material CCAW- Inside/ Outside Windings
- Magnet Material Ferrite
- Chassis Material Die-cast Aluminium
- Cone Material Curvilinear Polycellulose
- Surround / Edge Termination Polyvinyl Damped Half Roll Linen
- 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 16" / 406.4 mm
- Width Across Flats 15.25" / 387.35 mm
- Flange Height 0.305" / 7.8 mm
- Baffle Hole Diameter F/M 13.85" / 351.79 mm
- Baffle Hole Diameter R/M 14" / 355.6 mm
- Gasket Supplied Front & Rear
- Outer Fixing Holes 4x ø 0.281" on 15.5" PCD / 4x ø 7.1 mm on 393.7 mm PCD
- Inner Fixing Holes 8x ø 0.281" on 14.56" PCD / 8x ø 7.1 mm on 370 mm PCD
- Depth 6.5" / 165.1 mm
- Weight 22.48 lb / 10.2 Kg
- Recommended Enclosure Volume 75 - 125 Litres
- Shipping Weight 25.5 lb / 11.57 Kg
- Packing Carton Dimensions (W) 440 (D) 440 (H) 220 mm
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