Beyma 12XA30Nd

Coaxial

12″ / 300 mm
Nominal diameter
35 Hz
Resonance
0.21
Q factor
97 dB
Sensitivity
± 6 mm
Linear excursion
700 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
96.5
dB
Frequency response
40 - 20000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
35.0
Hz
Mechanical quality factor
QMS
8.00
Electrical quality factor
QES
0.22
Total quality factor
QTS
0.21

Large signal parameters

Maximum linear excursion
xmax
6.0
mm
Maximum excursion before damage
xlim
28.0
mm
Air volume displaced at xmax
VD
318
cm³
Power handling
P
350
W
Program power
Pmax
700
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
6.8
Ω
Inductance (1kHz)
LE
1.3
mH
VC Diameter
102
mm
Winding height
HVC
16
mm

Magnet

Force factor
Bl
18.2
N/A
Motor constant
Bl/√RE
6.98
N/√W
Air gap height
HAG
9
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
2.33
N/mm
Compliance
CMS
430
µm/N
Equivalent volume to the compliance
VAS
172
L
Mechanical resistance
RMS
1.4
N·s/m

Dimensions

Nominal diameter
12
300
mm
Overall diameter
312
mm
Baffle cutout diameter
283
mm
Overall depth
152
mm
Volume occupied by the driver (estimated)
2.9
L
Net weight
6.3
kg
Beyma 12XA30Nd SPL
Beyma 12XA30Nd SPL & Impedance
Beyma 12XA30Nd Directivity
Beyma 12XA30Nd Dimensions

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