Jensen Mod 8-20
4Ω
8ΩGuitar Speaker
8″ / 207 mm
Nominal diameter
111 Hz
Resonance
1.74
Q factor
96 dB
Sensitivity
± 1.5 mm
Linear excursion
40 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
95.8
dB
Thiele & Small parameters
Resonance frequency (free air)
fS
111
Hz
Mechanical quality factor
QMS
19.23
Electrical quality factor
QES
1.91
Total quality factor
QTS
1.74
Large signal parameters
Maximum linear excursion
xmax
1.5
mm
Air volume displaced at xmax
VD
32
cm³
Power handling
P
20
W
Program power
Pmax
40
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
3.3
Ω
Inductance (1kHz)
LE
0.3
mH
VC Diameter
25
mm
Winding material
Copper
Former material
Epotex
Magnet
Flux density
B
1.0
T
Force factor
Bl
3.47
N/A
Motor constant
Bl/√RE
1.92
N/√W
Weight
0.16
kg
Material
Ferrite
Diaphragm
Effective diameter
165
mm
Effective area
SD
214
cm²
Moving mass
MMS
10.1
g
Moving mass (without air load)
MMD
7.8
g
Material
Paper
Suspensions
Stiffness
KMS
4.9
N/mm
Compliance
CMS
204
µm/N
Equivalent volume to the compliance
VAS
13.1
L
Mechanical resistance
RMS
0.37
N·s/m
Surround material
Integrated Paper
Dimensions
Nominal diameter
8
″
207
mm
Overall diameter
207
mm
Volume occupied by the driver (estimated)
0.26
L
Net weight
0.68
kg
Frame material
Pressed Sheet
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SpeakerbenchSimilar speaker drivers to Jensen Mod 8-20
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10″Guitar Speaker
fS
119 Hz
SD
330 cm²
QTS
2.06
xmax
1.5 mm
SPL1W
97 dB
Bl/√RE
2.45
Pmax
80 W
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Jensen Mod 10-5016 Ω
10″Guitar Speaker
fS
101 Hz
SD
330 cm²
QTS
1.53
xmax
1.5 mm
SPL1W
96 dB
Bl/√RE
2.69
Pmax
100 W
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