Hertz HMS 10 B

Subwoofer

10″ / 250 mm
Nominal diameter
41 Hz
Resonance
0.71
Q factor
87 dB
Sensitivity
± 13.5 mm
Linear excursion
500 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
87.1
dB

Thiele & Small parameters

Resonance frequency (free air)
fS
41.0
Hz
Mechanical quality factor
QMS
11.00
Electrical quality factor
QES
0.76
Total quality factor
QTS
0.71

Large signal parameters

Maximum linear excursion
xmax
13.5
mm
Maximum excursion before damage
xlim
19.0
mm
Air volume displaced at xmax
VD
465
cm³
Power handling
P
250
W
Program power
Pmax
500
W

Voice Coil

Nominal impedance
Z
4
Ω
DC resistance
RE
4.5
Ω
Inductance (1kHz)
LE
0.9
mH
VC Diameter
50
mm

Magnet

Force factor
Bl
10.2
N/A
Motor constant
Bl/√RE
4.81
N/√W

Diaphragm

Effective diameter
210
mm
Effective area
SD
344
cm²
Moving mass
MMS
69
g
Moving mass (without air load)
MMD
64.5
g

Suspensions

Stiffness
KMS
4.55
N/mm
Compliance
CMS
220
µm/N
Equivalent volume to the compliance
VAS
37
L
Mechanical resistance
RMS
1.62
N·s/m

Dimensions

Nominal diameter
10
250
mm
Volume occupied by the driver (estimated)
1.5
L
Hertz HMS 10 B Impedance

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