Beyma 12GA50

Full-range

12″ / 300 mm
Nominal diameter
90 Hz
Resonance
1.16
Q factor
96 dB
Sensitivity
± 3 mm
Linear excursion
500 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
96.4
dB
Frequency response
100 - 18000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
90.0
Hz
Mechanical quality factor
QMS
14.80
Electrical quality factor
QES
1.26
Total quality factor
QTS
1.16

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
250
W
Program power
Pmax
500
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
6.2
Ω
Inductance (1kHz)
LE
0.6
mH
VC Diameter
51
mm
Winding height
HVC
9
mm

Magnet

Force factor
Bl
10.0
N/A
Motor constant
Bl/√RE
4.02
N/√W
Air gap height
HAG
7
mm

Diaphragm

Effective diameter
260
mm
Effective area
SD
530
cm²
Moving mass
MMS
34
g
Moving mass (without air load)
MMD
25.3
g

Suspensions

Stiffness
KMS
11.49
N/mm
Compliance
CMS
87
µm/N
Equivalent volume to the compliance
VAS
34
L
Mechanical resistance
RMS
1.3
N·s/m

Dimensions

Nominal diameter
12
300
mm
Overall diameter
312
mm
Baffle cutout diameter
278
mm
Overall depth
139
mm
Volume occupied by the driver (estimated)
1.8
L
Net weight
3.5
kg
Beyma 12GA50 SPL & Impedance
Beyma 12GA50 Dimensions

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