Dayton Audio CE4278-8

Full-range

1.25x3″/ 42x78 mm
Nominal size
211 Hz
Resonance
1.26
Q factor
84 dB
Sensitivity
± 2.1 mm
Linear excursion
20 W
Program Power
Dayton Audio CE4278-8 Full-rangeDayton Audio CE4278-8 Full-rangeDayton Audio CE4278-8 Full-range
Impedance
Excursion
Velocity
SPL
Phase
Group delay
Step response
Tone Burst
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
Discard
Apply
Sensitivity (1W, 1m, infinite baffle)
SPL1W
83.7
dB
Frequency response
150 - 17000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
211
Hz
Mechanical quality factor
QMS
6.20
Electrical quality factor
QES
1.58
Total quality factor
QTS
1.26

Large signal parameters

Maximum linear excursion
xmax
2.1
mm
Air volume displaced at xmax
VD
3.3
cm³
Power handling
P
10
W
Program power
Pmax
20
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
7.3
Ω
Inductance (1kHz)
LE
0.12
mH
VC Diameter
16
mm

Magnet

Force factor
Bl
2.88
N/A
Motor constant
Bl/√RE
1.07
N/√W

Diaphragm

Effective diameter
45
mm
Effective area
SD
16
cm²
Moving mass
MMS
1.4
g
Moving mass (without air load)
MMD
1.4
g

Suspensions

Stiffness
KMS
2.41
N/mm
Compliance
CMS
415
µm/N
Equivalent volume to the compliance
VAS
0.145
L
Mechanical resistance
RMS
0.3
N·s/m

Dimensions

Nominal size
1.25 x 3
″
42 x 78
mm
Overall size
42 x 78
mm
Baffle cutout diameter
62
mm
Overall depth
26
mm
Impedance
SPL
Dayton Audio CE4278-8 Impedance
Dayton Audio CE4278-8 SPL
DatasheetDatasheet

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