Colossus 18B-600 colossus 18B-600 T he Colossus 18B-600 is intended for use as a high output bass driver in multiway systems. It features a 4 inch voice coil immersed in a symmetric magnetic field yielding increased linearity and lower distortion. This, coupled with a large Xmax of 7.2 mm 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 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 vented diecast chassis and motor system 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 18B-600 exhibits 98 dB sensitivity and can deliver bass down to 32 Hz (-6 dB) in a 200 litre ported enclosure. 18.0'' 457 mm Mounting information ' .1' m 19 5 m 48 Overall Diameter 19.1 inch/485 mm Width Across Flats 18.0 inch/457 mm Flange Thickness 0.465 inch/11.8 mm Baffle Hole Diameter, Front Mount 16.53 inch/420 mm Baffle Hole Diameter, Rear Mount 16.33 inch/414 mm Gasket Supplied Front & Rear Fixing Holes 8 x 0.275 inch diam on 18.425 PCD/8 x 0.275 diam on 17.25 PCD 8 x 7 mm diam on 468 PCD/8 x 7 diam on 438.15 PCD Depth 8.18 inch/208 mm Weight 29.92 lb/13.6 kg Recommended Enclosure Volume 4.41-14.12 cu ft/125-400 litres Volume Displaced by Driver 0.269 cu ft/7.6 litres Shipping Weight 34.32 lb/15.6 kg Packing Carton Dimensions 485 x 485 x 276 mm 8.18'' 208 mm 9.21'' 234 mm Fane Acoustics Ltd. Unit 1, Millshaw Park Avenue Millshaw Park Industrial Estate Leeds LS11 0LR, England Tel: +44 (0) 113 277 8600 Fax: +44 (0) 113 277 8700 e-mail:firstname.lastname@example.org www.fane-acoustics.com Colossus 18B-600 Frequency response data Electro mechanical specifications 130 120 110 SPL dB 100 90 80 70 60 20 50 100 200 500 Hz 1k Fundamental 10 % Power Fundamental on-axis 1 Watt Fundamental 45° off-axis 1 Watt 2nd Harmonic 10 % Power 3rd Harmonic 10 % Power 2k 5k 10k 20k Data measured using swept sine wave input on an open baffle of dimensions 2.5 x 3.7 metres with a microphone distance of 1 metre. Coil Former Fibreglass Voice Coil Material Copper Magnet Ferrite Chassis Die Cast Aluminium Cone Curvilinear Polycellulose Surround/Edge Termination Polyvinyl Damped Double Half Roll Linen Dust Dome Solid Paper Connectors Push Button Spring Terminals Polarity Positive voltage at red terminal causes forward motion of cone 200 100 70 Thiele-Small parameters 50 40 30 Ohms 18 inch/457 mm 8Ω 600 (A.E.S.)1 121/127 dB 4.6 dB 30 Hz-1 kHz 98 dB 30 Hz 148 grams 25.2 7Ω 14.84 inch/377 mm 1.04 Tesla 0.43 inch/11 mm 0.87 inch/22 mm 115 feet/35 m 120 oz/3.40 kg 0.70 inch/18 mm 1.61 litres 4.0 inch/102 mms Construction materials Impedance 20 10 7 5 4 Nominal Chassis Diameter Impedance Power Handling Maximum Output Continuous/Peak Power Compression at Rated Power Usable Frequency Range (-6 dB) Average Sensitivity (in above range) 1W/1m Resonance Moving Mass inc. Air Load BL Product (Newtons/amp) Minimum Impedance (Zmin) Effective Piston Diameter Flux Density Magnetic Gap Depth Coil Winding Height Voice Coil Length Magnet Weight Maximum Cone Displacement Peak Displacement Volume of Cone, Vd Voice Coil Diameter 10 20 50 100 200 500 1k 2k 5k 10k Hz Computer predicted bass response 100 Resonant Frequency fs D.C Resistance Re Qts Qes Qms Mms (grams) Cms (microns per Newton) BL Product Vas Reference Efficiency ‹o Piston Area Sd Xmax 29 Hz 5.8 Ω 0.236 0.245 6.75 148 203 25.25 Tesla metres 354 litres 3.41 % 0.112 m2 7.2 mm 1 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. dB 90 80 70 60 20 30 50 70 100 150 200 200 500 Frequency Hz 125L fb 38Hz 200L fb 40Hz 400L fb 35Hz Fane Acoustics Ltd. Unit 1, Millshaw Park Avenue Millshaw Park Industrial Estate Leeds LS11 0LR, England Tel: +44 (0) 113 277 8600 Fax: +44 (0) 113 277 8700 e-mail:email@example.com www.fane-acoustics.com Fane Acoustics Ltd. operates a policy of continuous product development and reserves the right to change specifications without notice.
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