Beyma 12MC500

Subwoofer

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
Discard
Apply

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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
Beyma 12MC500 SPL & Impedance
Beyma 12MC500 Dimensions

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