Beyma 12MI100
Mid-range
12″ / 300 mm
Nominal diameter
58 Hz
Resonance
0.22
Q factor
99 dB
Sensitivity
± 3 mm
Linear excursion
900 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
98.5
dB
Frequency response
60 - 4000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
58.0
Hz
Mechanical quality factor
QMS
5.50
Electrical quality factor
QES
0.23
Total quality factor
QTS
0.22
Large signal parameters
Maximum linear excursion
xmax
3.0
mm
Maximum excursion before damage
xlim
24.0
mm
Air volume displaced at xmax
VD
159
cm³
Power handling
P
450
W
Program power
Pmax
900
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
6.3
Ω
Inductance (1kHz)
LE
1.0
mH
VC Diameter
76
mm
Winding height
HVC
13.5
mm
Magnet
Force factor
Bl
21.6
N/A
Motor constant
Bl/√RE
8.61
N/√W
Air gap height
HAG
10
mm
Diaphragm
Effective diameter
260
mm
Effective area
SD
530
cm²
Moving mass
MMS
47
g
Moving mass (without air load)
MMD
38.3
g
Suspensions
Stiffness
KMS
6.14
N/mm
Compliance
CMS
163
µm/N
Equivalent volume to the compliance
VAS
64
L
Mechanical resistance
RMS
3.3
N·s/m
Dimensions
Nominal diameter
12
″
300
mm
Overall diameter
312
mm
Baffle cutout diameter
278
mm
Overall depth
135
mm
Volume occupied by the driver (estimated)
2.9
L
Net weight
7.2
kg
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SpeakerbenchSimilar speaker drivers to Beyma 12MI100
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12″Subwoofer
fS
49 Hz
SD
515 cm²
50 - 3500 Hz
QTS
0.20
xmax
5.3 mm
SPL1W
98 dB
Bl/√RE
8.62
Pmax
900 W
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12″Mid Bass
fS
50 Hz
SD
530 cm²
80 - 5000 Hz
QTS
0.21
xmax
3.5 mm
SPL1W
100 dB
Bl/√RE
8.09
Pmax
700 W
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12″Woofer
fS
50 Hz
SD
522 cm²
50 - 2000 Hz
QTS
0.20
xmax
7.0 mm
SPL1W
97 dB
Bl/√RE
8.73
Pmax
800 W