B&C Speaker 15NDL88

Woofer

15″ / 380 mm
Nominal diameter
41 Hz
Resonance
0.28
Q factor
97 dB
Sensitivity
± 8 mm
Linear excursion
1400 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
Discard
Apply
Sensitivity (1W, 1m, infinite baffle)
SPL1W
96.6
dB
Frequency response
45 - 3000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
41.0
Hz
Mechanical quality factor
QMS
7.50
Electrical quality factor
QES
0.29
Total quality factor
QTS
0.28

Large signal parameters

Maximum linear excursion
xmax
8.0
mm
Air volume displaced at xmax
VD
684
cm³
Power handling
P
700
W
Program power
Pmax
1400
W

Voice Coil

Nominal impedance
Z
4
Ω
DC resistance
RE
3.0
Ω
Inductance (1kHz)
LE
0.9
mH
VC Diameter
88
mm
Winding height
HVC
21.5
mm
Winding material
Aluminium
Former material
Glass Fibre

Magnet

Flux density
B
1.05
T
Force factor
Bl
16.5
N/A
Motor constant
Bl/√RE
9.53
N/√W
Air gap height
HAG
10
mm
Material
Neodymium Inside Slug

Diaphragm

Effective diameter
330
mm
Effective area
SD
855
cm²
Moving mass
MMS
102
g
Moving mass (without air load)
MMD
84.4
g
Material
Waterproof Front Side

Suspensions

Stiffness
KMS
6.8
N/mm
Compliance
CMS
147
µm/N
Equivalent volume to the compliance
VAS
154
L
Mechanical resistance
RMS
3.5
N·s/m
Spider material
Silicone

Dimensions

Nominal diameter
15
380
mm
Overall diameter
393
mm
Baffle cutout diameter
354
mm
Overall depth
177
mm
Flange thickness
13
mm
Mounting depth
164
mm
Volume occupied by the driver
3.5
L
Net weight
5.7
kg
B&C Speaker 15NDL88 Impedance
B&C Speaker 15NDL88 SPL
B&C Speaker 15NDL88 Dimensions

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