P.Audio P180/2242 v3
Low frequency
18″ / 457 mm
Nominal diameter
46 Hz
Resonance
0.68
Q factor
94 dB
Sensitivity
± 6.8 mm
Linear excursion
2400 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
94.0
dB
Frequency response
40 - 1000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
46.0
Hz
Mechanical quality factor
QMS
7.41
Electrical quality factor
QES
0.75
Total quality factor
QTS
0.68
Large signal parameters
Maximum linear excursion
xmax
6.8
mm
Air volume displaced at xmax
VD
833
cm³
Power handling
P
1200
W
Program power
Pmax
2400
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.6
Ω
Inductance (1kHz)
LE
0.97
mH
VC Diameter
99
mm
Winding height
HVC
25.5
mm
Winding material
Flat aluminium wire
Former material
Glass fiber
Magnet
Flux density
B
1.0
T
Force factor
Bl
20.2
N/A
Motor constant
Bl/√RE
8.54
N/√W
Air gap height
HAG
12
mm
Material
Ferrite
Diaphragm
Effective diameter
405
mm
Effective area
SD
1225
cm²
Moving mass
MMS
186.7
g
Moving mass (without air load)
MMD
156.8
g
Material
Paper
Suspensions
Stiffness
KMS
16.13
N/mm
Compliance
CMS
62
µm/N
Equivalent volume to the compliance
VAS
131
L
Mechanical resistance
RMS
7.29
N·s/m
Surround material
Cloth
Spider material
Cotton (Double Silicone)
Dimensions
Nominal diameter
18
″
457
mm
Overall diameter
466
mm
Baffle cutout diameter
426
mm
Overall depth
237
mm
Flange thickness
19
mm
Mounting depth
218
mm
Volume occupied by the driver (estimated)
8.8
L
Net weight
15.5
kg
Frame material
Aluminium
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15″Subwoofer
fS
42 Hz
SD
847 cm²
40 - 4000 Hz
QTS
0.62
xmax
9.0 mm
SPL1W
94 dB
Bl/√RE
6.59
Pmax
1200 W
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15″Woofer
fS
43 Hz
SD
855 cm²
40 - 3000 Hz
QTS
0.53
xmax
4.3 mm
SPL1W
97 dB
Bl/√RE
5.56
Pmax
400 W
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15″Low frequency
fS
42 Hz
SD
855 cm²
55 - 2000 Hz
QTS
0.55
xmax
3.3 mm
SPL1W
95 dB
Bl/√RE
6.69
Pmax
800 W