FaitalPRO 12RS550 8Ω

Subwoofer

12″ / 300 mm
Nominal diameter
42 Hz
Resonance
0.37
Q factor
91 dB
Sensitivity
± 9.25 mm
Linear excursion
1000 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
Discard
Apply
Sensitivity (1W, 1m, infinite baffle)
SPL1W
91.0
dB
Frequency response
45 - 2500
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
42.0
Hz
Mechanical quality factor
QMS
6.90
Electrical quality factor
QES
0.39
Total quality factor
QTS
0.37

Large signal parameters

Maximum linear excursion
xmax
9.25
mm
Maximum excursion before damage
xlim
20.0
mm
Air volume displaced at xmax
VD
488
cm³
Power handling
P
500
W
Program power
Pmax
1000
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
5.1
Ω
Inductance (1kHz)
LE
1.5
mH
VC Diameter
77
mm
Winding height
HVC
22
mm
Winding material
Copper
Former material
Glass Fiber

Magnet

Flux density
B
1.2
T
Force factor
Bl
20.5
N/A
Motor constant
Bl/√RE
9.08
N/√W
Air gap height
HAG
10.5
mm
Material
Ferrite Ring

Diaphragm

Effective diameter
259
mm
Effective area
SD
528
cm²
Moving mass
MMS
123
g
Moving mass (without air load)
MMD
114.3
g

Suspensions

Stiffness
KMS
8.33
N/mm
Compliance
CMS
120
µm/N
Equivalent volume to the compliance
VAS
45.4
L
Mechanical resistance
RMS
4.7
N·s/m

Dimensions

Nominal diameter
12
300
mm
Overall diameter
316
mm
Baffle cutout diameter
282
mm
Overall depth
145
mm
Flange thickness
17
mm
Mounting depth
128
mm
Volume occupied by the driver
2.9
L
Net weight
8.1
kg
Frame material
Aluminium
FaitalPRO 12RS550 8Ω Impedance
FaitalPRO 12RS550 8Ω SPL
FaitalPRO 12RS550 8Ω Dimensions

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