12″ / 320 mm
Nominal diameter
42 Hz
Resonance
0.19
Q factor
98 dB
Sensitivity
± 4 mm
Linear excursion
700 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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Parts Express
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Specifications
Sensitivity (1w, 1m, infinite baffle)
SPL1W
97.6
dB
Frequency response
45 - 18000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
42.0
Hz
Mechanical quality factor
QMS
8.00
Electrical quality factor
QES
0.20
Total quality factor
QTS
0.19
Large signal parameters
Maximum linear excursion
xmax
4.0
mm
Air volume displaced at xmax
VD
209
cm³
Power handling
P
350
W
Program power
Pmax
700
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.0
Ω
Inductance (1kHz)
LE
0.8
mH
VC Diameter
76
mm
Winding height
HVC
16.5
mm
Former material
Glass Fibre
Magnet
Flux density
B
1.15
T
Force factor
Bl
17.6
N/A
Motor constant
Bl/√RE
7.87
N/√W
Air gap height
HAG
8
mm
Diaphragm
Effective diameter
258
mm
Effective area
SD
522
cm²
Moving mass
MMS
47
g
Moving mass (without air load)
MMD
38.4
g
Material
Waterproof Front Side
Suspensions
Stiffness
KMS
3.27
N/mm
Compliance
CMS
306
µm/N
Equivalent volume to the compliance
VAS
120
L
Mechanical resistance
RMS
1.55
N·s/m
Dimensions
Nominal diameter
12
″
320
mm
Overall diameter
315
mm
Baffle cutout diameter
283
mm
Overall depth
168
mm
Flange thickness
14
mm
Mounting depth
154
mm
Volume occupied by the driver (estimated)
2.7
L
Net weight
5.3
kg
Similar speaker drivers to B&C Speaker 12HCX76
12″Coaxial
fS
42 Hz
SD
522 cm²
45 - 18000 Hz
QTS
0.19
xmax
4.0 mm
SPL1W
98 dB
Bl/√RE
7.87
Pmax
700 W
12″Woofer
fS
44 Hz
SD
531 cm²
58 - 5000 Hz
QTS
0.18
xmax
4.5 mm
SPL1W
98 dB
Bl/√RE
8.05
Pmax
600 W
12″Coaxial
fS
46 Hz
SD
531 cm²
45 - 18000 Hz
QTS
0.22
xmax
6.0 mm
SPL1W
98 dB
Bl/√RE
8.04
Pmax
700 W