Hertz SPL Show SV 200L

Woofer

8″ / 200 mm
Nominal diameter
44 Hz
Resonance
0.33
Q factor
90 dB
Sensitivity
± 4.5 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
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Specifications

Sensitivity (1W, 1m, infinite baffle)
SPL1W
89.9
dB
Frequency response
45 - 5000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
44.0
Hz
Mechanical quality factor
QMS
3.32
Electrical quality factor
QES
0.36
Total quality factor
QTS
0.33

Large signal parameters

Maximum linear excursion
xmax
4.5
mm
Air volume displaced at xmax
VD
99
cm³
Power handling
P
250
W
Program power
Pmax
500
W

Voice Coil

Nominal impedance
Z
4
Ω
DC resistance
RE
3.0
Ω
Inductance (1kHz)
LE
0.75
mH
VC Diameter
50
mm

Magnet

Force factor
Bl
8.6
N/A
Motor constant
Bl/√RE
4.97
N/√W
Diameter
120
mm
Height
20
mm
Material
Ferrite

Diaphragm

Effective diameter
168
mm
Effective area
SD
221
cm²
Moving mass
MMS
31.5
g
Moving mass (without air load)
MMD
29.1
g
Material
Ultra light, non pressed paper

Suspensions

Stiffness
KMS
2.38
N/mm
Compliance
CMS
420
µm/N
Equivalent volume to the compliance
VAS
29
L
Mechanical resistance
RMS
2.62
N·s/m

Dimensions

Nominal diameter
8
200
mm
Overall diameter
209
mm
Baffle cutout diameter
178
mm
Overall depth
91
mm
Flange thickness
9
mm
Mounting depth
82
mm
Volume occupied by the driver (estimated)
0.83
L
Net weight
2.32
kg
Hertz SV 200L SPL & Impedance

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