Dayton Audio CE70PR-4

Full-range

2.5″ / 70 mm
Nominal diameter
109 Hz
Resonance
0.63
Q factor
82 dB
Sensitivity
± 4 mm
Linear excursion
40 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
Discard
Apply
Sensitivity (1W, 1m, infinite baffle)
SPL1W
81.5
dB
Frequency response
85 - 13000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
109
Hz
Mechanical quality factor
QMS
3.50
Electrical quality factor
QES
0.77
Total quality factor
QTS
0.63

Large signal parameters

Maximum linear excursion
xmax
4.0
mm
Air volume displaced at xmax
VD
9.8
cm³
Power handling
P
20
W
Program power
Pmax
40
W

Voice Coil

Nominal impedance
Z
4
Ω
DC resistance
RE
3.1
Ω
Inductance (1kHz)
LE
0.31
mH
VC Diameter
20
mm

Magnet

Force factor
Bl
3.11
N/A
Motor constant
Bl/√RE
1.76
N/√W

Diaphragm

Effective diameter
56
mm
Effective area
SD
25
cm²
Moving mass
MMS
3.5
g
Moving mass (without air load)
MMD
3.4
g

Suspensions

Stiffness
KMS
1.64
N/mm
Compliance
CMS
610
µm/N
Equivalent volume to the compliance
VAS
0.523
L
Mechanical resistance
RMS
0.68
N·s/m

Dimensions

Nominal diameter
2.5
70
mm
Overall diameter
70
mm
Baffle cutout diameter
64
mm
Overall depth
41
mm
Volume occupied by the driver (estimated)
0.1
L
Dayton Audio CE70PR-4 Impedance
Dayton Audio CE70PR-4 SPL

Export this driver to a simulation software:

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Similar speaker drivers to Dayton Audio CE70PR-4

Dayton Audio PC68-8 Full-range
2.5Full-range
fS
109 Hz
SD
21 cm²
110 - 17000 Hz
QTS
0.64
xmax
2.0 mm
SPL1W
82 dB
Bl/√RE
1.27
Pmax
40 W