Col 18B-600 Spec Sheet
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:info@fane-acoustics.com 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:info@fane-acoustics.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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