Eminence BETA-10A

Bass Guitar Speaker

10″ / 254 mm
Nominal diameter
53 Hz
Resonance
0.49
Q factor
94 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
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Specifications

Sensitivity (1w, 1m, infinite baffle)
SPL1W
93.6
dB
Frequency response
51 - 3800
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
53.0
Hz
Mechanical quality factor
QMS
8.14
Electrical quality factor
QES
0.52
Total quality factor
QTS
0.49

Large signal parameters

Maximum linear excursion
xmax
3.0
mm
Maximum excursion before damage
xlim
8.6
mm
Air volume displaced at xmax
VD
104
cm³
Power handling
P
250
W
Program power
Pmax
500
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
5.8
Ω
Inductance (1kHz)
LE
0.67
mH
VC Diameter
51
mm
Winding material
Aluminum
Former material
Polyimide

Magnet

Force factor
Bl
9.6
N/A
Motor constant
Bl/√RE
4.0
N/√W
Air gap height
HAG
7.9
mm
Weight
0.964
kg
Material
Ferrite

Diaphragm

Effective diameter
210
mm
Effective area
SD
345
cm²
Moving mass
MMS
25
g
Moving mass (without air load)
MMD
20.4
g
Material
Paper

Suspensions

Stiffness
KMS
2.78
N/mm
Compliance
CMS
360
µm/N
Equivalent volume to the compliance
VAS
60.1
L
Mechanical resistance
RMS
1.02
N·s/m
Surround material
Cloth

Dimensions

Nominal diameter
10
254
mm
Overall diameter
257
mm
Baffle cutout diameter
232
mm
Overall depth
101
mm
Volume occupied by the driver
1.13
L
Net weight
3.08
kg
Frame material
Pressed steel
Eminence BETA-10A SPL & Impedance

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