Eminence ALPHA-6A

Mid Bass

6″ / 165 mm
Nominal diameter
103 Hz
Resonance
0.54
Q factor
95 dB
Sensitivity
± 3.5 mm
Linear excursion
200 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
94.8
dB
Frequency response
95 - 6000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
103
Hz
Mechanical quality factor
QMS
5.68
Electrical quality factor
QES
0.60
Total quality factor
QTS
0.54

Large signal parameters

Maximum linear excursion
xmax
3.5
mm
Maximum excursion before damage
xlim
4.0
mm
Air volume displaced at xmax
VD
44
cm³
Power handling
P
100
W
Program power
Pmax
200
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
7.2
Ω
Inductance (1kHz)
LE
0.19
mH
VC Diameter
38
mm
Winding material
Copper
Former material
Polyimide

Magnet

Force factor
Bl
8.0
N/A
Motor constant
Bl/√RE
2.98
N/√W
Air gap height
HAG
6.4
mm
Weight
0.567
kg
Material
Ferrite

Diaphragm

Effective diameter
127
mm
Effective area
SD
127
cm²
Moving mass
MMS
7
g
Moving mass (without air load)
MMD
5.9
g
Material
Paper

Suspensions

Stiffness
KMS
3.85
N/mm
Compliance
CMS
260
µm/N
Equivalent volume to the compliance
VAS
5.8
L
Mechanical resistance
RMS
0.8
N·s/m
Surround material
Cloth

Dimensions

Nominal diameter
6
165
mm
Overall diameter
167
mm
Baffle cutout diameter
144
mm
Overall depth
71
mm
Volume occupied by the driver
0.41
L
Net weight
1.86
kg
Frame material
Pressed steel
Eminence ALPHA-6A SPL & Impedance

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