Precision Devices PD.186/2
Subwoofer
18″ / 460 mm
Nominal diameter
34 Hz
Resonance
0.52
Q factor
93 dB
Sensitivity
± 10.5 mm
Linear excursion
1400 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
92.9
dB
Frequency response
30 - 2000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
34.2
Hz
Mechanical quality factor
QMS
10.77
Electrical quality factor
QES
0.55
Total quality factor
QTS
0.52
Large signal parameters
Maximum linear excursion
xmax
10.5
mm
Air volume displaced at xmax
VD
1191
cm³
Power handling
P
700
W
Program power
Pmax
1400
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
6.2
Ω
Inductance (1kHz)
LE
1.95
mH
VC Diameter
127
mm
Winding height
HVC
25
mm
Winding material
Copper
Former material
Glass Fibre
Magnet
Flux density
B
0.95
T
Force factor
Bl
22.18
N/A
Motor constant
Bl/√RE
8.91
N/√W
Air gap height
HAG
9
mm
Material
Ceramic
Diaphragm
Effective diameter
380
mm
Effective area
SD
1134
cm²
Moving mass
MMS
203.9
g
Moving mass (without air load)
MMD
175.9
g
Material
Paper
Suspensions
Stiffness
KMS
9.38
N/mm
Compliance
CMS
107
µm/N
Equivalent volume to the compliance
VAS
192
L
Mechanical resistance
RMS
4.07
N·s/m
Surround material
Fabric
Dimensions
Nominal diameter
18
″
460
mm
Overall diameter
474
mm
Baffle cutout diameter
415
mm
Overall depth
188
mm
Flange thickness
15
mm
Mounting depth
173
mm
Volume occupied by the driver (estimated)
7.4
L
Net weight
14.9
kg
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Export this driver to a simulation software:
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SpeakerbenchSimilar subwoofers to Precision Devices PD.186/2
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fS
33 Hz
SD
1255 cm²
35 - 1000 Hz
QTS
0.43
xmax
14.5 mm
SPL1W
94 dB
Bl/√RE
10
Pmax
3200 W
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18″Low frequency
fS
35 Hz
SD
1225 cm²
30 - 1000 Hz
QTS
0.54
xmax
6.0 mm
SPL1W
93 dB
Bl/√RE
9.63
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2400 W
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fS
36 Hz
SD
1661 cm²
32 - 300 Hz
QTS
0.46
xmax
15.2 mm
SPL1W
94 dB
Bl/√RE
13
Pmax
3000 W