Dayton Audio PC68-8

Full-range

2.5″ / 68 mm
Nominal diameter
109 Hz
Resonance
0.64
Q factor
82 dB
Sensitivity
± 2 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
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Specifications

Sensitivity (1w, 1m, infinite baffle)
SPL1W
82.1
dB
Frequency response
110 - 17000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
109
Hz
Mechanical quality factor
QMS
2.27
Electrical quality factor
QES
0.88
Total quality factor
QTS
0.64

Large signal parameters

Maximum linear excursion
xmax
2.0
mm
Air volume displaced at xmax
VD
4.2
cm³
Power handling
P
20
W
Program power
Pmax
40
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
6.8
Ω
Inductance (1kHz)
LE
0.47
mH
VC Diameter
19
mm
Winding material
Copper
Former material
Aluminum

Magnet

Force factor
Bl
3.3
N/A
Motor constant
Bl/√RE
1.27
N/√W
Material
Ferrite

Diaphragm

Effective diameter
52
mm
Effective area
SD
21
cm²
Moving mass
MMS
2
g
Moving mass (without air load)
MMD
1.9
g
Material
Poly Composite

Suspensions

Stiffness
KMS
0.95
N/mm
Compliance
CMS
1050
µm/N
Equivalent volume to the compliance
VAS
1.3
L
Mechanical resistance
RMS
0.6
N·s/m
Surround material
Rubber

Dimensions

Nominal diameter
2.5
68
mm
Overall diameter
68
mm
Baffle cutout diameter
64
mm
Overall depth
37
mm
Frame material
Stamped Steel
Dayton Audio PC68-8 Impedance
Dayton Audio PC68-8 SPL
Dayton Audio PC68-8 Dimensions

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