Click to enlarge
|
The collossus 18-1000 is intended for use as a high-output sub-bass driver either singly or in multiway systems. It is suitable for loading in a variety of enclosure types since it allows enclosure designers considerably more freedom with specialised loading techniques without having to make allowances for physical characteristics or power handling limitations. 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 curvilinear Polycellulose cone is reinforced with high strength Fibrated Nylon 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 and voice coil venting. These measures effectively remove heat from the voice coil resulting in extremly low-power compression. The Colossus 18-1000 is designed for use in 100 to 250 litre ported enclosures.
Electro Mechanical Specifications:
- Nominal Chassis Diameter - 18 inch/457 mm
- Impedance - 8 Ohm
- Power Handling - 1000 (A.E.S)
- Maximum Output Continuous Peak - 120/126 dB
- Usable Frequency Range (-6 dB) - 27 Hz-1 kHz
- Average Sensitivity (in above range) 1 W/1 m - 98 dB
- Resonance - 32 Hz
- Moving Mass inc. Air Load - 144 grams
- BL Product (Newtons/amp) - 20.6
- Minimum Impedance (Zmin) - 7 Ohm
- Effective Piston Diameter - 386 mm
- Flux Density - 1.0 Tesla
- Magnetic Gap Depth - 0.43 inch/11 mm
- Coil Winding Height - 0.98 inch/25 mm
- Voice Coil Length - 118 feet/36 m
- Magnet Weight - 97 oz
- Voice Coil Diameter - 4.0 inch/102 mm
Thiele & Small Parameters:
- Resonant Frequency fs - 32 Hz
- D.C Resistance Re - 5.8 Ohm
- Qts - 0.363
- Qes - 0.395
- Qms - 4.567
- Mms (grams) - 144
- Cms (microns per Newton) - 166
- BL Product - 20.62 Tesla metres
- Vas - 323.1 litres
- Piston Area Sd - 1178 cm2
- Xmax - 12.75 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 - 32.00 lb/14.5 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 - 36.37 lb/16.5 kg
- Packing Carton Dimensions - 485 x 485 x 276 mm
Materials of Construction:
- Coil Former - Fibreglass
- Voice Coil - Copper
- Magnet Material - Ferrite
- Chassis -Die-cast Aluminium
- Cone - Curvilinear Polycellulose
- Surround/Edge Termination - Polyvinyl Damped Multi Roll HG poly/cotton
- Dust Dome - Solid Paper
- Connectors - Push-button Spring Terminals
- Polarity - Positive Voltage at Red Terminal Causes Forward Motion of Cone
|
.gif){kind=small}
