Precision Devices PD.155N01
Subwoofer
15″ / 380 mm
Nominal diameter
45 Hz
Resonance
0.31
Q factor
98 dB
Sensitivity
± 10.5 mm
Linear excursion
1400 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
98.0
dB
Frequency response
45 - 1500
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
45.0
Hz
Mechanical quality factor
QMS
13.41
Electrical quality factor
QES
0.32
Total quality factor
QTS
0.31
Large signal parameters
Maximum linear excursion
xmax
10.5
mm
Maximum excursion before damage
xlim
20.0
mm
Air volume displaced at xmax
VD
953
cm³
Power handling
P
700
W
Program power
Pmax
1400
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
6.4
Ω
Inductance (1kHz)
LE
0.61
mH
VC Diameter
127
mm
Winding height
HVC
25
mm
Winding material
Copper
Former material
Glass Fibre
Magnet
Flux density
B
1.05
T
Force factor
Bl
26.53
N/A
Motor constant
Bl/√RE
10.5
N/√W
Air gap height
HAG
9
mm
Material
Neodymium
Diaphragm
Effective diameter
340
mm
Effective area
SD
908
cm²
Moving mass
MMS
119.8
g
Moving mass (without air load)
MMD
100.3
g
Material
Paper
Suspensions
Stiffness
KMS
10.0
N/mm
Compliance
CMS
100
µm/N
Equivalent volume to the compliance
VAS
113
L
Mechanical resistance
RMS
2.53
N·s/m
Dimensions
Nominal diameter
15
″
380
mm
Overall diameter
410
mm
Baffle cutout diameter
357
mm
Overall depth
158
mm
Flange thickness
10
mm
Mounting depth
148
mm
Volume occupied by the driver (estimated)
4.5
L
Net weight
9.5
kg
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fS
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SD
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40 - 1500 Hz
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Bl/√RE
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SD
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SD
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45 - 18000 Hz
QTS
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xmax
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