3″ / 101 mm
Nominal diameter
117 Hz
Resonance
0.74
Q factor
85 dB
Sensitivity
± 2.6 mm
Linear excursion
70 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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Parts Express
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Specifications
Sensitivity (1w, 1m, infinite baffle)
SPL1W
85.3
dB
Frequency response
150 - 20000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
117
Hz
Mechanical quality factor
QMS
5.87
Electrical quality factor
QES
0.85
Total quality factor
QTS
0.74
Large signal parameters
Maximum linear excursion
xmax
2.6
mm
Maximum excursion before damage
xlim
4.0
mm
Air volume displaced at xmax
VD
7.4
cm³
Power handling
P
35
W
Program power
Pmax
70
W
Voice Coil
Nominal impedance
Z
32
Ω
DC resistance
RE
22.4
Ω
Inductance (1kHz)
LE
0.23
mH
VC Diameter
20
mm
Magnet
Force factor
Bl
6.46
N/A
Motor constant
Bl/√RE
1.36
N/√W
Air gap height
HAG
2
mm
Weight
0.227
kg
Diaphragm
Effective diameter
60
mm
Effective area
SD
29
cm²
Moving mass
MMS
2
g
Moving mass (without air load)
MMD
1.9
g
Material
Paper/Poly sandwich
Suspensions
Stiffness
KMS
1.16
N/mm
Compliance
CMS
860
µm/N
Equivalent volume to the compliance
VAS
0.98
L
Mechanical resistance
RMS
0.25
N·s/m
Dimensions
Nominal diameter
3
″
101
mm
Overall diameter
101
mm
Baffle cutout diameter
77
mm
Overall depth
45
mm
Volume occupied by the driver
0.13
L
Net weight
0.41
kg
Frame material
Pressed steel
Similar speaker drivers to Eminence ALPHA 3-32
4″Woofer
fS
120 Hz
SD
55 cm²
60 - 15000 Hz
QTS
0.66
xmax
5.0 mm
SPL1W
86 dB
Bl/√RE
2.13
Pmax
60 W
3.5″Mid-range
fS
122 Hz
SD
35 cm²
150 - 10000 Hz
QTS
0.64
xmax
1.5 mm
SPL1W
86 dB
Bl/√RE
1.53
Pmax
90 W
3.5″Full-range
fS
113 Hz
SD
38 cm²
98 - 18500 Hz
QTS
0.65
xmax
2.3 mm
SPL1W
85 dB
Bl/√RE
1.9
Pmax
70 W