8″ / 200 mm
Nominal diameter
85 Hz
Resonance
0.37
Q factor
93 dB
Sensitivity
± 3.57 mm
Linear excursion
400 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
93.4
dB
Frequency response
80 - 6300
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
85.0
Hz
Mechanical quality factor
QMS
8.80
Electrical quality factor
QES
0.39
Total quality factor
QTS
0.37
Large signal parameters
Maximum linear excursion
xmax
3.57
mm
Maximum excursion before damage
xlim
10.65
mm
Air volume displaced at xmax
VD
78
cm³
Power handling
P
200
W
Program power
Pmax
400
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.3
Ω
Inductance (1kHz)
LE
0.41
mH
VC Diameter
52
mm
Winding height
HVC
9.8
mm
Winding material
Aluminium
Former material
Glass Fiber
Magnet
Flux density
B
1.3
T
Force factor
Bl
13.4
N/A
Motor constant
Bl/√RE
5.82
N/√W
Air gap height
HAG
8
mm
Diaphragm
Effective diameter
166
mm
Effective area
SD
217
cm²
Moving mass
MMS
24.5
g
Moving mass (without air load)
MMD
22.2
g
Suspensions
Stiffness
KMS
7.14
N/mm
Compliance
CMS
140
µm/N
Equivalent volume to the compliance
VAS
9.4
L
Mechanical resistance
RMS
1.5
N·s/m
Dimensions
Nominal diameter
8
″
200
mm
Overall size
208 x 224
mm
Baffle cutout diameter
183
mm
Overall depth
99
mm
Flange thickness
11
mm
Mounting depth
88
mm
Volume occupied by the driver
1.06
L
Net weight
4.3
kg
Similar woofers to FaitalPRO 8PR155 8Ω
8″Woofer
fS
81 Hz
SD
214 cm²
QTS
0.33
xmax
4.5 mm
SPL1W
94 dB
Bl/√RE
5.31
Pmax
450 W
8″Woofer
fS
82 Hz
SD
222 cm²
80 - 3000 Hz
QTS
0.41
xmax
6.3 mm
SPL1W
92 dB
Bl/√RE
5.52
Pmax
500 W
8″Woofer
fS
77 Hz
SD
214 cm²
75 - 4000 Hz
QTS
0.30
xmax
3.5 mm
SPL1W
95 dB
Bl/√RE
5.47
Pmax
600 W