B&C Speaker 15NDL76
Woofer
15″ / 380 mm
Nominal diameter
37 Hz
Resonance
0.22
Q factor
97 dB
Sensitivity
± 7 mm
Linear excursion
1000 W
Program Power
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Available on (affiliate links)
Parts Express
$$$
Amazon.com
$$$
Specifications
Sensitivity (1w, 1m, infinite baffle)
SPL1W
97.2
dB
Frequency response
40 - 2000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
37.0
Hz
Mechanical quality factor
QMS
4.50
Electrical quality factor
QES
0.24
Total quality factor
QTS
0.22
Large signal parameters
Maximum linear excursion
xmax
7.0
mm
Air volume displaced at xmax
VD
599
cm³
Power handling
P
500
W
Program power
Pmax
1000
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.3
Ω
Inductance (1kHz)
LE
1.5
mH
VC Diameter
76
mm
Winding height
HVC
18
mm
Winding material
Copper
Former material
Glass Fibre
Magnet
Flux density
B
1.25
T
Force factor
Bl
22.5
N/A
Motor constant
Bl/√RE
9.77
N/√W
Air gap height
HAG
11
mm
Material
Neodymium Inside Slug
Diaphragm
Effective diameter
330
mm
Effective area
SD
855
cm²
Moving mass
MMS
96
g
Moving mass (without air load)
MMD
78.4
g
Material
Waterproof Both Sides
Suspensions
Stiffness
KMS
5.32
N/mm
Compliance
CMS
188
µm/N
Equivalent volume to the compliance
VAS
195
L
Mechanical resistance
RMS
4.96
N·s/m
Dimensions
Nominal diameter
15
″
380
mm
Overall diameter
393
mm
Baffle cutout diameter
354
mm
Overall depth
171
mm
Flange thickness
16
mm
Mounting depth
155
mm
Volume occupied by the driver
3.5
L
Net weight
4.7
kg
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SD
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SD
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xmax
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