Fane COLOSSUS 18XB

Subwoofer

18″ / 457 mm
Nominal diameter
33 Hz
Resonance
0.34
Q factor
95 dB
Sensitivity
± 7.5 mm
Linear excursion
2000 W
Program Power
Driver
Port
Combined
Frequency response
Hz
Impedance
Ω
Impedance Phase
°
Excursion
mm
Velocity
m/s
SPL
dB
Acoustical Phase
°
Group Delay
ms
Transient response
ms
Discard
Apply
Sensitivity (1W, 1m, infinite baffle)
SPL1W
95.2
dB
Frequency response
35 - 1000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
33.0
Hz
Mechanical quality factor
QMS
5.77
Electrical quality factor
QES
0.36
Total quality factor
QTS
0.34

Large signal parameters

Maximum linear excursion
xmax
7.5
mm
Air volume displaced at xmax
VD
848
cm³
Power handling
P
1000
W
Program power
Pmax
2000
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
6.5
Ω
Inductance (1kHz)
LE
1.99
mH
VC Diameter
102
mm
Winding height
HVC
23
mm
Winding material
Copper
Former material
Glass Fibre

Magnet

Flux density
B
1.2
T
Force factor
Bl
25.9
N/A
Motor constant
Bl/√RE
10.2
N/√W
Air gap height
HAG
10
mm
Weight
3.402
kg
Material
Ferrite

Diaphragm

Effective diameter
382
mm
Effective area
SD
1131
cm²
Moving mass
MMS
173
g
Moving mass (without air load)
MMD
144.6
g
Material
Polycellulose

Suspensions

Stiffness
KMS
7.69
N/mm
Compliance
CMS
130
µm/N
Equivalent volume to the compliance
VAS
236
L
Mechanical resistance
RMS
6.22
N·s/m
Surround material
Polyvinyl damped Poly Cotton

Dimensions

Nominal diameter
18
457
mm
Overall diameter
485
mm
Baffle cutout diameter
415
mm
Overall depth
205
mm
Flange thickness
12
mm
Mounting depth
193
mm
Volume occupied by the driver (estimated)
7.7
L
Net weight
14.2
kg
Frame material
Die-cast Aluminium
Fane COLOSSUS 18XB Impedance
Fane COLOSSUS 18XB SPL
Fane COLOSSUS 18XB Dimensions

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