Precision Devices PD.185N02
Subwoofer
18″ / 460 mm
Nominal diameter
35 Hz
Resonance
0.24
Q factor
97 dB
Sensitivity
± 12 mm
Linear excursion
2200 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
97.1
dB
Frequency response
35 - 1000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
35.2
Hz
Mechanical quality factor
QMS
22.06
Electrical quality factor
QES
0.25
Total quality factor
QTS
0.24
Large signal parameters
Maximum linear excursion
xmax
12.0
mm
Maximum excursion before damage
xlim
22.0
mm
Air volume displaced at xmax
VD
1397
cm³
Power handling
P
1100
W
Program power
Pmax
2200
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
4.7
Ω
Inductance (1kHz)
LE
0.57
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
30.55
N/A
Motor constant
Bl/√RE
14.1
N/√W
Air gap height
HAG
12
mm
Material
Neodymium
Diaphragm
Effective diameter
385
mm
Effective area
SD
1164
cm²
Moving mass
MMS
219.9
g
Moving mass (without air load)
MMD
191.1
g
Material
Paper
Suspensions
Stiffness
KMS
11.11
N/mm
Compliance
CMS
90
µm/N
Equivalent volume to the compliance
VAS
178
L
Mechanical resistance
RMS
2.21
N·s/m
Dimensions
Nominal diameter
18
″
460
mm
Overall diameter
474
mm
Baffle cutout diameter
415
mm
Overall depth
185
mm
Flange thickness
15
mm
Mounting depth
170
mm
Volume occupied by the driver (estimated)
6.2
L
Net weight
11.5
kg
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SpeakerbenchSimilar subwoofers to Precision Devices PD.185N02
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15″Subwoofer
fS
35 Hz
SD
850 cm²
40 - 4100 Hz
QTS
0.24
xmax
7.5 mm
SPL1W
97 dB
Bl/√RE
10
Pmax
800 W
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15″Subwoofer
fS
39 Hz
SD
850 cm²
50 - 3000 Hz
QTS
0.26
xmax
8.0 mm
SPL1W
97 dB
Bl/√RE
9.96
Pmax
1200 W