12″ / 300 mm
Nominal diameter
57 Hz
Resonance
0.34
Q factor
96 dB
Sensitivity
± 8 mm
Linear excursion
1000 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
96.2
dB
Frequency response
65 - 5000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
57.0
Hz
Mechanical quality factor
QMS
7.80
Electrical quality factor
QES
0.35
Total quality factor
QTS
0.34
Large signal parameters
Maximum linear excursion
xmax
8.0
mm
Maximum excursion before damage
xlim
40.0
mm
Air volume displaced at xmax
VD
440
cm³
Power handling
P
500
W
Program power
Pmax
1000
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.6
Ω
Inductance (1kHz)
LE
0.7
mH
VC Diameter
64
mm
Winding height
HVC
19.5
mm
Magnet
Force factor
Bl
18.3
N/A
Motor constant
Bl/√RE
7.73
N/√W
Air gap height
HAG
9.5
mm
Diaphragm
Effective diameter
265
mm
Effective area
SD
550
cm²
Moving mass
MMS
59
g
Moving mass (without air load)
MMD
50
g
Suspensions
Stiffness
KMS
7.58
N/mm
Compliance
CMS
132
µm/N
Equivalent volume to the compliance
VAS
57
L
Mechanical resistance
RMS
2.7
N·s/m
Dimensions
Nominal diameter
12
″
300
mm
Overall diameter
312
mm
Baffle cutout diameter
278
mm
Overall depth
140
mm
Volume occupied by the driver (estimated)
2.6
L
Net weight
5.8
kg
Similar subwoofers to Beyma 12MC500
12″Mid-range
fS
57 Hz
SD
573 cm²
60 - 5000 Hz
QTS
0.33
xmax
6.6 mm
SPL1W
96 dB
Bl/√RE
8.47
Pmax
2000 W
12″Subwoofer
fS
55 Hz
SD
531 cm²
50 - 4600 Hz
QTS
0.33
xmax
8.0 mm
SPL1W
96 dB
Bl/√RE
7.29
Pmax
1200 W
12″Coaxial
fS
55 Hz
SD
540 cm²
50 - 20000 Hz
QTS
0.37
xmax
9.3 mm
SPL1W
96 dB
Bl/√RE
7.35
Pmax
800 W