BMS 12N810
Woofer
12″ / 318 mm
Nominal diameter
41 Hz
Resonance
0.16
Q factor
97 dB
Sensitivity
± 2.5 mm
Linear excursion
1200 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
97.1
dB
Frequency response
80 - 2000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
40.7
Hz
Mechanical quality factor
QMS
5.10
Electrical quality factor
QES
0.17
Total quality factor
QTS
0.16
Large signal parameters
Maximum linear excursion
xmax
2.5
mm
Air volume displaced at xmax
VD
133
cm³
Power handling
P
600
W
Program power
Pmax
1200
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.8
Ω
Inductance (1kHz)
LE
0.76
mH
VC Diameter
102
mm
Winding height
HVC
15
mm
Winding material
Copper
Magnet
Force factor
Bl
24.5
N/A
Motor constant
Bl/√RE
10.2
N/√W
Air gap height
HAG
10
mm
Material
Neodymium
Diaphragm
Effective diameter
260
mm
Effective area
SD
531
cm²
Moving mass
MMS
68
g
Moving mass (without air load)
MMD
59.2
g
Suspensions
Stiffness
KMS
4.35
N/mm
Compliance
CMS
230
µm/N
Equivalent volume to the compliance
VAS
89.6
L
Mechanical resistance
RMS
3.41
N·s/m
Dimensions
Nominal diameter
12
″
318
mm
Overall diameter
318
mm
Baffle cutout diameter
284
mm
Overall depth
155
mm
Volume occupied by the driver (estimated)
2.7
L
Net weight
5.5
kg
Frame material
Cast Aluminum
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SpeakerbenchSimilar woofers to BMS 12N810
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12″Mid Bass
fS
46 Hz
SD
540 cm²
50 - 5000 Hz
QTS
0.19
xmax
4.0 mm
SPL1W
97 dB
Bl/√RE
9.84
Pmax
1000 W
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12″Mid-range
fS
46 Hz
SD
531 cm²
80 - 5500 Hz
QTS
0.14
xmax
3.5 mm
SPL1W
99 dB
Bl/√RE
9.88
Pmax
700 W