Hertz SV 200.1

Mid-range

8″ / 200 mm
Nominal diameter
120 Hz
Resonance
0.55
Q factor
95 dB
Sensitivity
± 1.5 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
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Specifications

Sensitivity (1W, 1m, infinite baffle)
SPL1W
95.4
dB
Frequency response
100 - 9000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
120
Hz
Mechanical quality factor
QMS
10.30
Electrical quality factor
QES
0.58
Total quality factor
QTS
0.55

Large signal parameters

Maximum linear excursion
xmax
1.5
mm
Air volume displaced at xmax
VD
35
cm³
Power handling
P
250
W
Program power
Pmax
500
W

Voice Coil

Nominal impedance
Z
4
Ω
DC resistance
RE
3.3
Ω
Inductance (1kHz)
LE
0.22
mH
VC Diameter
38
mm

Magnet

Force factor
Bl
8.3
N/A
Motor constant
Bl/√RE
4.6
N/√W
Material
High density flux ferrite

Diaphragm

Effective diameter
168
mm
Effective area
SD
230
cm²
Moving mass
MMS
16.5
g
Moving mass (without air load)
MMD
14.1
g
Material
Ultra light pressed paper

Suspensions

Stiffness
KMS
10.0
N/mm
Compliance
CMS
100
µm/N
Equivalent volume to the compliance
VAS
7.5
L
Mechanical resistance
RMS
1.21
N·s/m

Dimensions

Nominal diameter
8
200
mm
Volume occupied by the driver (estimated)
0.82
L
Hertz SV 200.1 SPL & Impedance

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