D.A.S. Audio 15LM
Mid Bass
15″ / 381 mm
Nominal diameter
40 Hz
Resonance
0.49
Q factor
96 dB
Sensitivity
± 5 mm
Linear excursion
800 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
96.0
dB
Frequency response
40 - 5000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
40.4
Hz
Mechanical quality factor
QMS
8.59
Electrical quality factor
QES
0.52
Total quality factor
QTS
0.49
Large signal parameters
Maximum linear excursion
xmax
5.0
mm
Air volume displaced at xmax
VD
449
cm³
Power handling
P
400
W
Program power
Pmax
800
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
6.4
Ω
Inductance (1kHz)
LE
0.82
mH
VC Diameter
77
mm
Winding material
Copper
Magnet
Force factor
Bl
16.29
N/A
Motor constant
Bl/√RE
6.44
N/√W
Material
Ferrite
Diaphragm
Effective diameter
338
mm
Effective area
SD
897
cm²
Moving mass
MMS
85.8
g
Moving mass (without air load)
MMD
67.8
g
Suspensions
Stiffness
KMS
5.53
N/mm
Compliance
CMS
181
µm/N
Equivalent volume to the compliance
VAS
207
L
Mechanical resistance
RMS
2.53
N·s/m
Dimensions
Nominal diameter
15
″
381
mm
Volume occupied by the driver (estimated)
4.3
L
Frame material
Injected Aluminum
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SpeakerbenchSimilar subwoofers to D.A.S. Audio 15LM
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18″Low frequency
fS
41 Hz
SD
1225 cm²
35 - 1000 Hz
QTS
0.52
xmax
5.3 mm
SPL1W
96 dB
Bl/√RE
9.07
Pmax
2000 W
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15″Woofer
fS
43 Hz
SD
855 cm²
40 - 3000 Hz
QTS
0.53
xmax
4.3 mm
SPL1W
97 dB
Bl/√RE
5.56
Pmax
400 W
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18″Low frequency
fS
38 Hz
SD
1225 cm²
35 - 1000 Hz
QTS
0.44
xmax
6.5 mm
SPL1W
95 dB
Bl/√RE
9.52
Pmax
1200 W