Eminence ALPHA-10A

Mid Bass

10″ / 254 mm
Nominal diameter
50 Hz
Resonance
0.59
Q factor
93 dB
Sensitivity
± 3.2 mm
Linear excursion
300 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
93.0
dB
Frequency response
57 - 4500
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
50.0
Hz
Mechanical quality factor
QMS
5.21
Electrical quality factor
QES
0.66
Total quality factor
QTS
0.59

Large signal parameters

Maximum linear excursion
xmax
3.2
mm
Maximum excursion before damage
xlim
9.1
mm
Air volume displaced at xmax
VD
114
cm³
Power handling
P
150
W
Program power
Pmax
300
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
5.3
Ω
Inductance (1kHz)
LE
0.66
mH
VC Diameter
38
mm
Winding material
Copper
Former material
Polyimide

Magnet

Force factor
Bl
7.5
N/A
Motor constant
Bl/√RE
3.25
N/√W
Air gap height
HAG
6.4
mm
Weight
0.567
kg
Material
Ferrite

Diaphragm

Effective diameter
213
mm
Effective area
SD
355
cm²
Moving mass
MMS
22
g
Moving mass (without air load)
MMD
17.2
g
Material
Paper

Suspensions

Stiffness
KMS
2.17
N/mm
Compliance
CMS
460
µm/N
Equivalent volume to the compliance
VAS
82.2
L
Mechanical resistance
RMS
1.33
N·s/m
Surround material
Cloth

Dimensions

Nominal diameter
10
254
mm
Overall diameter
257
mm
Baffle cutout diameter
232
mm
Overall depth
99
mm
Volume occupied by the driver
0.95
L
Net weight
2.04
kg
Frame material
Pressed steel
Eminence ALPHA-10A SPL & Impedance

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fS
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SD
350 cm²
49 - 5100 Hz
QTS
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xmax
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SPL1W
93 dB
Bl/√RE
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Pmax
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