Precision Devices PD.1850/2
Subwoofer
18″ / 460 mm
Nominal diameter
33 Hz
Resonance
0.24
Q factor
96 dB
Sensitivity
± 11.05 mm
Linear excursion
1600 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
96.2
dB
Frequency response
35 - 2000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
33.2
Hz
Mechanical quality factor
QMS
15.42
Electrical quality factor
QES
0.24
Total quality factor
QTS
0.24
Large signal parameters
Maximum linear excursion
xmax
11.05
mm
Air volume displaced at xmax
VD
1286
cm³
Power handling
P
800
W
Program power
Pmax
1600
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.2
Ω
Inductance (1kHz)
LE
1.33
mH
VC Diameter
127
mm
Winding height
HVC
28
mm
Winding material
Copper
Former material
Glass Fibre
Magnet
Flux density
B
1.18
T
Force factor
Bl
30.99
N/A
Motor constant
Bl/√RE
13.6
N/√W
Air gap height
HAG
12
mm
Material
Ceramic
Diaphragm
Effective diameter
385
mm
Effective area
SD
1164
cm²
Moving mass
MMS
215.2
g
Moving mass (without air load)
MMD
186.4
g
Material
Paper
Suspensions
Stiffness
KMS
9.35
N/mm
Compliance
CMS
107
µm/N
Equivalent volume to the compliance
VAS
204
L
Mechanical resistance
RMS
2.91
N·s/m
Dimensions
Nominal diameter
18
″
460
mm
Overall diameter
474
mm
Baffle cutout diameter
415
mm
Overall depth
190
mm
Flange thickness
15
mm
Mounting depth
175
mm
Volume occupied by the driver (estimated)
9.8
L
Net weight
22.8
kg
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Export this driver to a simulation software:
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SpeakerbenchSimilar subwoofers to Precision Devices PD.1850/2
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fS
36 Hz
SD
1158 cm²
30 - 1000 Hz
QTS
0.23
xmax
11.0 mm
SPL1W
96 dB
Bl/√RE
14
Pmax
3000 W
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fS
32 Hz
SD
1222 cm²
32 - 2500 Hz
QTS
0.21
xmax
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SPL1W
96 dB
Bl/√RE
14
Pmax
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fS
33 Hz
SD
850 cm²
50 - 3600 Hz
QTS
0.22
xmax
7.5 mm
SPL1W
97 dB
Bl/√RE
9.42
Pmax
800 W