VISATON SL 87 FE - 8 Ohm

Full-range

3.4″ / 85 mm
Nominal diameter
120 Hz
Resonance
0.65
Q factor
87 dB
Sensitivity
± 1.8 mm
Linear excursion
15 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
86.6
dB
Frequency response
75 - 18000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
120
Hz
Mechanical quality factor
QMS
3.30
Electrical quality factor
QES
0.82
Total quality factor
QTS
0.65

Large signal parameters

Maximum linear excursion
xmax
1.8
mm
Air volume displaced at xmax
VD
6.7
cm³
Power handling
P
10
W
Program power
Pmax
15
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
7.2
Ω
Inductance (1kHz, estimated)
LE
0.17
mH
VC Diameter
20
mm
Winding height
HVC
6
mm

Magnet

Force factor
Bl
3.95
N/A
Motor constant
Bl/√RE
1.47
N/√W
Air gap height
HAG
2.5
mm

Diaphragm

Effective diameter
69
mm
Effective area
SD
37
cm²
Moving mass
MMS
2.4
g
Moving mass (without air load)
MMD
2.2
g

Suspensions

Stiffness
KMS
1.29
N/mm
Compliance
CMS
775
µm/N
Equivalent volume to the compliance
VAS
1.53
L
Mechanical resistance
RMS
0.55
N·s/m

Dimensions

Nominal diameter
3.4
85
mm
Baffle cutout diameter
80
mm
Volume occupied by the driver (estimated)
0.18
L
Net weight
0.486
kg
VISATON SL 87 FE - 8 Ohm SPL & Impedance
VISATON SL 87 FE - 8 Ohm Directivity
VISATON SL 87 FE - 8 Ohm Dimensions

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