B&C Speaker 12FW76

Mid Bass

12″ / 320 mm
Nominal diameter
54 Hz
Resonance
0.18
Q factor
97 dB
Sensitivity
± 7 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
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Specifications

Sensitivity (1W, 1m, infinite baffle)
SPL1W
97.3
dB
Frequency response
55 - 3000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
54.0
Hz
Mechanical quality factor
QMS
4.20
Electrical quality factor
QES
0.17
Total quality factor
QTS
0.18

Large signal parameters

Maximum linear excursion
xmax
7.0
mm
Air volume displaced at xmax
VD
365
cm³
Power handling
P
500
W
Program power
Pmax
1000
W

Voice Coil

Nominal impedance
Z
4
Ω
DC resistance
RE
3.1
Ω
Inductance (1kHz)
LE
1.0
mH
VC Diameter
76
mm
Winding height
HVC
19
mm
Winding material
Copper
Former material
Glass Fibre

Magnet

Flux density
B
1.35
T
Force factor
Bl
20.4
N/A
Motor constant
Bl/√RE
11.6
N/√W
Air gap height
HAG
11
mm
Material
Ferrite

Diaphragm

Effective diameter
258
mm
Effective area
SD
522
cm²
Moving mass
MMS
69.5
g
Moving mass (without air load)
MMD
60.9
g
Material
Waterproof Front Side

Suspensions

Stiffness
KMS
7.75
N/mm
Compliance
CMS
129
µm/N
Equivalent volume to the compliance
VAS
48.5
L
Mechanical resistance
RMS
5.61
N·s/m

Dimensions

Nominal diameter
12
320
mm
Overall diameter
315
mm
Baffle cutout diameter
283
mm
Overall depth
147
mm
Flange thickness
12
mm
Mounting depth
135
mm
Volume occupied by the driver
3.0
L
Net weight
8.55
kg
B&C Speaker 12FW76 Impedance
B&C Speaker 12FW76 SPL
B&C Speaker 12FW76 Dimensions

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