Celestion BN15-400X

Bass Guitar Speaker

15″ / 381 mm
Nominal diameter
35 Hz
Resonance
0.53
Q factor
94 dB
Sensitivity
± 4 mm
Linear excursion
800 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
93.7
dB
Frequency response
38 - 3000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
35.1
Hz
Mechanical quality factor
QMS
5.07
Electrical quality factor
QES
0.59
Total quality factor
QTS
0.53

Large signal parameters

Maximum linear excursion
xmax
4.0
mm
Air volume displaced at xmax
VD
342
cm³
Power handling
P
400
W
Program power
Pmax
800
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
5.2
Ω
Inductance (1kHz)
LE
1.08
mH
VC Diameter
76
mm
Winding height
HVC
18
mm
Winding material
Copper
Former material
Polyimide

Magnet

Force factor
Bl
12.9
N/A
Motor constant
Bl/√RE
5.66
N/√W
Air gap height
HAG
10
mm
Height
40
mm
Material
Neodymium

Diaphragm

Effective diameter
330
mm
Effective area
SD
855
cm²
Moving mass
MMS
84
g
Moving mass (without air load)
MMD
66.7
g
Material
Kevlar loaded paper

Suspensions

Stiffness
KMS
4.1
N/mm
Compliance
CMS
244
µm/N
Equivalent volume to the compliance
VAS
253
L
Mechanical resistance
RMS
3.655
N·s/m
Surround material
Cloth-sealed

Dimensions

Nominal diameter
15
381
mm
Overall diameter
385
mm
Baffle cutout diameter
351
mm
Overall depth
152
mm
Volume occupied by the driver (estimated)
1.8
L
Net weight
2.6
kg
Celestion BN15-400X SPL

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fS
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SD
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QTS
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