Beyma 12CXA400Nd

Fe
Nd

Coaxial

12″ / 300 mm
Nominal diameter
45 Hz
Resonance
0.25
Q factor
96 dB
Sensitivity
± 6 mm
Linear excursion
800 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
96.0
dB
Frequency response
50 - 20000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
45.0
Hz
Mechanical quality factor
QMS
7.10
Electrical quality factor
QES
0.26
Total quality factor
QTS
0.25

Large signal parameters

Maximum linear excursion
xmax
6.0
mm
Maximum excursion before damage
xlim
28.0
mm
Air volume displaced at xmax
VD
330
cm³
Power handling
P
400
W
Program power
Pmax
800
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
6.6
Ω
Inductance (1kHz)
LE
1.0
mH
VC Diameter
102
mm
Winding height
HVC
16
mm

Magnet

Force factor
Bl
21.4
N/A
Motor constant
Bl/√RE
8.33
N/√W
Air gap height
HAG
9
mm

Diaphragm

Effective diameter
265
mm
Effective area
SD
550
cm²
Moving mass
MMS
64
g
Moving mass (without air load)
MMD
55
g

Suspensions

Stiffness
KMS
4.83
N/mm
Compliance
CMS
207
µm/N
Equivalent volume to the compliance
VAS
88.5
L
Mechanical resistance
RMS
2.5
N·s/m

Dimensions

Nominal diameter
12
300
mm
Overall diameter
312
mm
Baffle cutout diameter
283
mm
Overall depth
153
mm
Volume occupied by the driver (estimated)
2.9
L
Net weight
6.5
kg
Beyma 12CXA400Nd SPL
Beyma 12CXA400Nd SPL & Impedance
Beyma 12CXA400Nd Directivity
Beyma 12CXA400Nd Dimensions

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