Hertz Dieci DS 25.3

Subwoofer

10″ / 250 mm
Nominal diameter
36 Hz
Resonance
0.92
Q factor
85 dB
Sensitivity
± 9 mm
Linear excursion
600 W
Program Power
Driver
Port
Combined
Frequency response
Hz
Impedance
Ω
Impedance Phase
°
Excursion
mm
Velocity
m/s
SPL
dB
Acoustical Phase
°
Group Delay
ms
Transient response
ms
Discard
Apply
Sensitivity (1W, 1m, infinite baffle)
SPL1W
84.9
dB
Frequency response
32 - 400
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
36.0
Hz
Mechanical quality factor
QMS
5.00
Electrical quality factor
QES
1.13
Total quality factor
QTS
0.92

Large signal parameters

Maximum linear excursion
xmax
9.0
mm
Maximum excursion before damage
xlim
16.0
mm
Air volume displaced at xmax
VD
328
cm³
Power handling
P
150
W
Program power
Pmax
600
W

Voice Coil

Nominal impedance
Z
4
Ω
DC resistance
RE
3.3
Ω
Inductance (1kHz)
LE
2.15
mH
VC Diameter
38
mm

Magnet

Force factor
Bl
8.5
N/A
Motor constant
Bl/√RE
4.68
N/√W
Diameter
100
mm
Height
25
mm
Material
Ferrite

Diaphragm

Effective diameter
215
mm
Effective area
SD
365
cm²
Moving mass
MMS
106
g
Moving mass (without air load)
MMD
101.1
g
Material
Polypropylene with Mica injection

Suspensions

Stiffness
KMS
5.56
N/mm
Compliance
CMS
180
µm/N
Equivalent volume to the compliance
VAS
34
L
Mechanical resistance
RMS
4.8
N·s/m

Dimensions

Nominal diameter
10
250
mm
Overall diameter
257
mm
Baffle cutout diameter
234
mm
Overall depth
116
mm
Flange thickness
12
mm
Mounting depth
104
mm
Volume occupied by the driver (estimated)
1.3
L
Net weight
3.0
kg
Hertz DS 25.3 Impedance

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