BMS 12S330

Subwoofer

12″ / 318 mm
Nominal diameter
29 Hz
Resonance
0.24
Q factor
91 dB
Sensitivity
± 8 mm
Linear excursion
1200 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
90.6
dB
Frequency response
25 - 300
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
28.6
Hz
Mechanical quality factor
QMS
5.90
Electrical quality factor
QES
0.25
Total quality factor
QTS
0.24

Large signal parameters

Maximum linear excursion
xmax
8.0
mm
Air volume displaced at xmax
VD
398
cm³
Power handling
P
600
W
Program power
Pmax
1200
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
6.0
Ω
Inductance (1kHz)
LE
0.7
mH
VC Diameter
77
mm
Winding height
HVC
26
mm
Winding material
Copper

Magnet

Force factor
Bl
23.0
N/A
Motor constant
Bl/√RE
9.39
N/√W
Air gap height
HAG
10
mm
Material
Ferrite

Diaphragm

Effective diameter
252
mm
Effective area
SD
498
cm²
Moving mass
MMS
127
g
Moving mass (without air load)
MMD
118.8
g

Suspensions

Stiffness
KMS
4.17
N/mm
Compliance
CMS
240
µm/N
Equivalent volume to the compliance
VAS
85.5
L
Mechanical resistance
RMS
3.87
N·s/m

Dimensions

Nominal diameter
12
318
mm
Overall diameter
318
mm
Baffle cutout diameter
284
mm
Overall depth
171
mm
Volume occupied by the driver (estimated)
4.0
L
Net weight
9.4
kg
Frame material
Cast Aluminum
BMS 12S330 Impedance
BMS 12S330 SPL & Distortion
BMS 12S330 Dimensions

Export this driver to a simulation software:

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Similar subwoofers to BMS 12S330

MONACOR SPH-250TC Subwoofer
10Subwoofer
fS
26 Hz
SD
346 cm²
26 - 3500 Hz
QTS
0.25
xmax
4.5 mm
SPL1W
91 dB
Bl/√RE
6.02
Pmax
300 W