Celestion BN12-300S (8)

Bass Guitar Speaker

12″ / 305 mm
Nominal diameter
62 Hz
Resonance
0.32
Q factor
97 dB
Sensitivity
± 2.5 mm
Linear excursion
600 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
97.0
dB
Frequency response
50 - 4000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
62.1
Hz
Mechanical quality factor
QMS
2.74
Electrical quality factor
QES
0.36
Total quality factor
QTS
0.32

Large signal parameters

Maximum linear excursion
xmax
2.5
mm
Air volume displaced at xmax
VD
133
cm³
Power handling
P
300
W
Program power
Pmax
600
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
5.1
Ω
Inductance (1kHz)
LE
0.51
mH
VC Diameter
64
mm
Winding height
HVC
13
mm
Winding material
Copper
Former material
Polyimide

Magnet

Force factor
Bl
17.02
N/A
Motor constant
Bl/√RE
7.52
N/√W
Air gap height
HAG
8
mm
Height
37
mm
Material
Neodymium

Diaphragm

Effective diameter
260
mm
Effective area
SD
531
cm²
Moving mass
MMS
52.4
g
Moving mass (without air load)
MMD
43.8
g
Material
Kevlar loaded paper

Suspensions

Stiffness
KMS
8.0
N/mm
Compliance
CMS
125
µm/N
Equivalent volume to the compliance
VAS
50
L
Mechanical resistance
RMS
7.455
N·s/m
Surround material
Cloth-sealed

Dimensions

Nominal diameter
12
305
mm
Overall diameter
309
mm
Baffle cutout diameter
283
mm
Overall depth
132
mm
Volume occupied by the driver (estimated)
1.2
L
Net weight
2.0
kg
Celestion BN12-300S (8) SPL

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