Hertz Dieci DS 30.3
Subwoofer
12″ / 300 mm
Nominal diameter
32 Hz
Resonance
0.62
Q factor
87 dB
Sensitivity
± 9 mm
Linear excursion
1000 W
Program Power
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Specifications
Sensitivity (1w, 1m, infinite baffle)
SPL1W
87.4
dB
Frequency response
28 - 300
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
32.0
Hz
Mechanical quality factor
QMS
5.14
Electrical quality factor
QES
0.71
Total quality factor
QTS
0.62
Large signal parameters
Maximum linear excursion
xmax
9.0
mm
Maximum excursion before damage
xlim
9.0
mm
Air volume displaced at xmax
VD
471
cm³
Power handling
P
250
W
Program power
Pmax
1000
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
3.3
Ω
Inductance (1kHz)
LE
2.2
mH
VC Diameter
38
mm
Magnet
Force factor
Bl
11.2
N/A
Motor constant
Bl/√RE
6.17
N/√W
Diameter
115
mm
Height
25
mm
Material
Ferrite
Diaphragm
Effective diameter
258
mm
Effective area
SD
524
cm²
Moving mass
MMS
133
g
Moving mass (without air load)
MMD
124.6
g
Material
Polypropylene with Mica injection
Suspensions
Stiffness
KMS
5.56
N/mm
Compliance
CMS
180
µm/N
Equivalent volume to the compliance
VAS
70
L
Mechanical resistance
RMS
5.2
N·s/m
Dimensions
Nominal diameter
12
″
300
mm
Overall diameter
306
mm
Baffle cutout diameter
279
mm
Overall depth
132
mm
Flange thickness
12
mm
Mounting depth
120
mm
Volume occupied by the driver (estimated)
1.9
L
Net weight
4.0
kg
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SpeakerbenchSimilar subwoofers to Hertz DS 30.3
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10″Subwoofer
fS
34 Hz
SD
490 cm²
20 - 220 Hz
QTS
0.62
xmax
4.7 mm
SPL1W
88 dB
Bl/√RE
5.98
Pmax
500 W
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