4″ / 100 mm
Nominal diameter
90 Hz
Resonance
0.67
Q factor
83 dB
Sensitivity
± 1.5 mm
Linear excursion
50 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
82.9
dB
Frequency response
80 - 20000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
90.0
Hz
Mechanical quality factor
QMS
2.29
Electrical quality factor
QES
0.95
Total quality factor
QTS
0.67
Large signal parameters
Maximum linear excursion
xmax
1.5
mm
Maximum excursion before damage
xlim
4.0
mm
Air volume displaced at xmax
VD
7.5
cm³
Power handling
P
30
W
Program power
Pmax
50
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
7.2
Ω
Inductance (1kHz)
LE
0.2
mH
VC Diameter
20
mm
Winding height
HVC
6
mm
Magnet
Flux density
B
0.95
T
Force factor
Bl
4.6
N/A
Motor constant
Bl/√RE
1.71
N/√W
Air gap height
HAG
3
mm
Diaphragm
Effective diameter
80
mm
Effective area
SD
50
cm²
Moving mass
MMS
5.7
g
Moving mass (without air load)
MMD
5.4
g
Suspensions
Stiffness
KMS
1.54
N/mm
Compliance
CMS
649
µm/N
Equivalent volume to the compliance
VAS
2.3
L
Mechanical resistance
RMS
1.41
N·s/m
Dimensions
Nominal diameter
4
″
100
mm
Baffle cutout diameter
100
mm
Volume occupied by the driver (estimated)
0.14
L
Net weight
0.38
kg
Similar speaker drivers to VISATON FR 10 - 8 Ohm
4″Woofer
fS
83 Hz
SD
50 cm²
70 - 10000 Hz
QTS
0.70
xmax
1.8 mm
SPL1W
83 dB
Bl/√RE
1.8
Pmax
70 W
3″Mid-range
fS
85 Hz
SD
32 cm²
85 - 16000 Hz
QTS
0.56
xmax
0.8 mm
SPL1W
83 dB
Bl/√RE
1.37
Pmax
30 W
4″Mid Bass
fS
77 Hz
SD
55 cm²
77 - 4500 Hz
QTS
0.63
xmax
4.0 mm
SPL1W
83 dB
Bl/√RE
2.24
Pmax
70 W