Haut-parleur FANE Acoustics COLOSSUS 18 XB
[COL 18XB-8] Avis/Critiques The Colossus 18XB is intended for use as a high-output sub-bass driver either singly or in multiway systems.
The unit features a 4-inch 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 600 Watts (A.E.S.) continuous and can cope with peaks in excess of 2400 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 Mechanical Specifications
Nominal Chassis Diameter 18 inch/457 mm
Impedance 4,8 or 16 Ω1
Power Handling 600 (A.E.S.)2
Maximum Output Continuous/Peak 122/128 dB
Power Compression at Rated Power 3.3 dB
Usable Frequency Range (-6 dB) 27 Hz-1 kHz
Average Sensitivity (in above range) 1 W/1 m 97.5 dB3
Resonance 30 Hz
Moving Mass inc. Air Load 161 grams
BL Product (Newtons/amp) 24.6
Minimum Impedance (Zmin) 7.3 Ω
Effective Piston Diameter 14.84 inch/377 mm
Flux Density 1.0 Tesla
Magnetic Gap Depth 0.39 inch/10 mm
Coil Winding Height 0.87 inch/22 mm
Voice Coil Length 115 feet/35 m
Magnet Weight 120 oz/3.4 kg
Maximum Cone Displacement 0.70 inch/18 mm
Peak Displacement Volume of Cone, Vd 1.61 litres
Voice Coil Diameter 4.0 inch/101.6 mm
Thiele & Small Parameters
Resonant Frequency fs 33 Hz
D.C Resistance Re 6 Ω
Qts 0.323
Qes 0.34
Qms 6.58
Mms (grams) 161
Cms (microns per Newton) 141
BL Product 24.59 Tesla metres
Vas 246 litres
Reference Efficiency no 2.61 %
Piston Area Sd 0.112 m2
Xmax 7.2 mm
Mounting Information
Overall Diameter 19.1"/485 mm
Width Across Flats 18"/457 mm
Flange Thickness 0.465"/11.8 mm
Baffle Hole Diameter, Front Mount 16.53"/420 mm
Baffle Hole Diameter, Rear Mount 16.33"/414 mm
Gasket Supplied Front & Rear
Fixing Holes 8 x 7 diam on 468 PCD
8 x 7 diam on 438.15 PCD
Depth 8.5"/205 mm
Weight 31.24 lb/14.2 kg
Recommended Enclosure Volume 3.5-8.8 cu ft/100-250 litres
Volume Displaced by Driver 0.269 cu ft/7.6 litres
Shipping Weight 35.64 lb/16.2 kg
Packing Carton Dimensions 485 x 485 x 276 mm
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