15″ / 397 mm
Nominal diameter
27 Hz
Resonance
0.33
Q factor
88 dB
Sensitivity
± 23 mm
Linear excursion
4000 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
88.3
dB
Thiele & Small parameters
Resonance frequency (free air)
fS
26.7
Hz
Mechanical quality factor
QMS
4.76
Electrical quality factor
QES
0.35
Total quality factor
QTS
0.33
Large signal parameters
Maximum linear excursion
xmax
23.0
mm
Air volume displaced at xmax
VD
1944
cm³
Power handling
P
2000
W
Program power
Pmax
4000
W
Voice Coil
Nominal impedance
Z
1
Ω
DC resistance
RE
0.3
Ω
Inductance (1kHz, estimated)
LE
0.18
mH
VC Diameter
81
mm
Winding material
round copper
Magnet
Force factor
Bl
8.7
N/A
Motor constant
Bl/√RE
15.9
N/√W
Diameter
210
mm
Height
54
mm
Diaphragm
Effective diameter
328
mm
Effective area
SD
845
cm²
Moving mass
MMS
481
g
Moving mass (without air load)
MMD
463.4
g
Material
Paper with glass fiber
Suspensions
Stiffness
KMS
16.39
N/mm
Compliance
CMS
61
µm/N
Equivalent volume to the compliance
VAS
61.7
L
Mechanical resistance
RMS
16.95
N·s/m
Dimensions
Nominal diameter
15
″
397
mm
Overall diameter
397
mm
Baffle cutout diameter
370
mm
Mounting depth
200
mm
Volume occupied by the driver
5.0
L
Net weight
18.6
kg
Frame material
Aluminium
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SpeakerbenchSimilar subwoofers to Pride M20.15 S1
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Fi Car Audio SP4 15v2+ D22 x 2 Ω
15″Subwoofer
fS
28 Hz
SD
810 cm²
QTS
0.32
xmax
33.0 mm
SPL1W
89 dB
Bl/√RE
15
Pmax
7000 W
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Fi Car Audio SP4 15v2+ D12 x 1 Ω
15″Subwoofer
fS
28 Hz
SD
810 cm²
QTS
0.32
xmax
33.0 mm
SPL1W
89 dB
Bl/√RE
15
Pmax
7000 W