P.Audio 12FT-88MB
NT
FT
Low frequency
12″ / 305 mm
Nominal diameter
49 Hz
Resonance
0.29
Q factor
96 dB
Sensitivity
± 4.75 mm
Linear excursion
1400 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
95.6
dB
Frequency response
45 - 4000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
49.0
Hz
Mechanical quality factor
QMS
6.31
Electrical quality factor
QES
0.31
Total quality factor
QTS
0.29
Large signal parameters
Maximum linear excursion
xmax
4.75
mm
Air volume displaced at xmax
VD
252
cm³
Power handling
P
700
W
Program power
Pmax
1400
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
6.3
Ω
Inductance (1kHz)
LE
0.83
mH
VC Diameter
89
mm
Winding height
HVC
19
mm
Winding material
Flat aluminium wire
Former material
Kapton
Magnet
Flux density
B
1.3
T
Force factor
Bl
19.79
N/A
Motor constant
Bl/√RE
7.88
N/√W
Air gap height
HAG
9.5
mm
Material
Ferrite
Diaphragm
Effective diameter
261
mm
Effective area
SD
531
cm²
Moving mass
MMS
62.1
g
Moving mass (without air load)
MMD
53.4
g
Material
Paper
Suspensions
Stiffness
KMS
6.1
N/mm
Compliance
CMS
164
µm/N
Equivalent volume to the compliance
VAS
65.7
L
Mechanical resistance
RMS
3.03
N·s/m
Surround material
Cloth
Spider material
Cotton
Dimensions
Nominal diameter
12
″
305
mm
Overall diameter
313
mm
Baffle cutout diameter
283
mm
Overall depth
155
mm
Flange thickness
15
mm
Mounting depth
140
mm
Volume occupied by the driver (estimated)
3.7
L
Net weight
9.2
kg
Frame material
Aluminium
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10″Coaxial
fS
50 Hz
SD
346 cm²
55 - 3500 Hz
QTS
0.31
xmax
4.0 mm
SPL1W
95 dB
Bl/√RE
5.1
Pmax
400 W
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12″Woofer
fS
49 Hz
SD
530 cm²
50 - 3000 Hz
QTS
0.26
xmax
7.0 mm
SPL1W
96 dB
Bl/√RE
8.17
Pmax
1000 W
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12″Woofer
fS
50 Hz
SD
522 cm²
50 - 2000 Hz
QTS
0.27
xmax
7.0 mm
SPL1W
96 dB
Bl/√RE
7.73
Pmax
800 W