Dayton Audio CE81PF-8
Full-range
3″ / 81 mm
Nominal diameter
97 Hz
Resonance
0.81
Q factor
82 dB
Sensitivity
± 2.7 mm
Linear excursion
30 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
82.2
dB
Frequency response
80 - 18000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
97.0
Hz
Mechanical quality factor
QMS
7.92
Electrical quality factor
QES
0.90
Total quality factor
QTS
0.81
Large signal parameters
Maximum linear excursion
xmax
2.7
mm
Air volume displaced at xmax
VD
7.6
cm³
Power handling
P
15
W
Program power
Pmax
30
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
6.7
Ω
Inductance (1kHz)
LE
0.14
mH
VC Diameter
20
mm
Magnet
Force factor
Bl
3.72
N/A
Motor constant
Bl/√RE
1.44
N/√W
Diaphragm
Effective diameter
60
mm
Effective area
SD
28
cm²
Moving mass
MMS
3
g
Moving mass (without air load)
MMD
2.9
g
Suspensions
Stiffness
KMS
1.13
N/mm
Compliance
CMS
889
µm/N
Equivalent volume to the compliance
VAS
0.998
L
Mechanical resistance
RMS
0.23
N·s/m
Dimensions
Nominal diameter
3
″
81
mm
Overall diameter
81
mm
Baffle cutout diameter
70
mm
Overall depth
51
mm
Volume occupied by the driver (estimated)
0.1
L
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4″Full-range
fS
102 Hz
SD
39 cm²
100 - 20000 Hz
QTS
0.96
xmax
2.0 mm
SPL1W
83 dB
Bl/√RE
1.41
Pmax
100 W
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3″Full-range
fS
100 Hz
SD
29 cm²
60 - 16000 Hz
QTS
0.74
xmax
3.4 mm
SPL1W
83 dB
Bl/√RE
1.43
Pmax
50 W
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3.3″Full-range
fS
110 Hz
SD
26 cm²
70 - 20000 Hz
QTS
0.97
xmax
0.5 mm
SPL1W
82 dB
Bl/√RE
0.907
Pmax
50 W