Hertz SPL Show SS 15 D2
Subwoofer
15″ / 380 mm
Nominal diameter
31 Hz
Resonance
0.61
Q factor
88 dB
Sensitivity
± 15.4 mm
Linear excursion
2400 W
Program Power
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Sensitivity (1W, 1m, infinite baffle)
SPL1W
87.6
dB
Thiele & Small parameters
Resonance frequency (free air)
fS
31.0
Hz
Mechanical quality factor
QMS
7.40
Electrical quality factor
QES
0.66
Total quality factor
QTS
0.61
Large signal parameters
Maximum linear excursion
xmax
15.4
mm
Maximum excursion before damage
xlim
20.7
mm
Air volume displaced at xmax
VD
1282
cm³
Power handling
P
1200
W
Program power
Pmax
2400
W
Voice Coil
Nominal impedance
Z
2 x 2
Ω
DC resistance (in series)
RE
3.8
Ω
Inductance (1kHz, in series)
LE
4.0
mH
VC Diameter
75
mm
Magnet
Force factor (in series)
Bl
20.0
N/A
Motor constant
Bl/√RE
10.2
N/√W
Diameter
180
mm
Height
40
mm
Material
Ferrite
Diaphragm
Effective diameter
323
mm
Effective area
SD
833
cm²
Moving mass
MMS
361
g
Moving mass (without air load)
MMD
344
g
Material
Non pressed paper with cotton fibre
Suspensions
Stiffness
KMS
14.29
N/mm
Compliance
CMS
70
µm/N
Equivalent volume to the compliance
VAS
68.8
L
Mechanical resistance
RMS
9.5
N·s/m
Dimensions
Nominal diameter
15
″
380
mm
Overall diameter
390
mm
Baffle cutout diameter
353
mm
Overall depth
210
mm
Flange thickness
22
mm
Mounting depth
188
mm
Volume occupied by the driver (estimated)
5.5
L
Net weight
10.1
kg
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SD
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