SB Acoustics SB34NRXL75-8
Woofer
12″ / 305 mm
Nominal diameter
22 Hz
Resonance
0.28
Q factor
90 dB
Sensitivity
± 10 mm
Linear excursion
400 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
90.2
dB
Thiele & Small parameters
Resonance frequency (free air)
fS
22.0
Hz
Mechanical quality factor
QMS
5.50
Electrical quality factor
QES
0.29
Total quality factor
QTS
0.28
Large signal parameters
Maximum linear excursion
xmax
10.0
mm
Air volume displaced at xmax
VD
508
cm³
Power handling
P
200
W
Program power
Pmax
400
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
6.2
Ω
Inductance (1kHz)
LE
1.2
mH
VC Diameter
76
mm
Winding height
HVC
28
mm
Magnet
Flux density
B
1.1
T
Force factor
Bl
16.6
N/A
Motor constant
Bl/√RE
6.67
N/√W
Air gap height
HAG
8
mm
Weight
3.6
kg
Diaphragm
Effective diameter
254
mm
Effective area
SD
508
cm²
Moving mass
MMS
93
g
Moving mass (without air load)
MMD
84.9
g
Suspensions
Stiffness
KMS
1.79
N/mm
Compliance
CMS
560
µm/N
Equivalent volume to the compliance
VAS
205
L
Mechanical resistance
RMS
2.35
N·s/m
Dimensions
Nominal diameter
12
″
305
mm
Volume occupied by the driver (estimated)
4.0
L
Net weight
8.9
kg
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11″Woofer
fS
23 Hz
SD
366 cm²
23 - 1000 Hz
QTS
0.29
xmax
5.0 mm
SPL1W
90 dB
Bl/√RE
4.95
Pmax
240 W
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10″Woofer
fS
23 Hz
SD
350 cm²
23 - 3000 Hz
QTS
0.24
xmax
4.5 mm
SPL1W
91 dB
Bl/√RE
4.74
Pmax
120 W