Dayton Audio DMA105-8

Full-range

4″ / 102 mm
Nominal diameter
72 Hz
Resonance
0.63
Q factor
85 dB
Sensitivity
± 2.5 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
Discard
Apply

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Specifications

Sensitivity (1W, 1m, infinite baffle)
SPL1W
84.5
dB
Frequency response
70 - 20000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
72.0
Hz
Mechanical quality factor
QMS
2.64
Electrical quality factor
QES
0.83
Total quality factor
QTS
0.63

Large signal parameters

Maximum linear excursion
xmax
2.5
mm
Air volume displaced at xmax
VD
14
cm³
Power handling
P
35
W
Program power
Pmax
70
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
7.5
Ω
Inductance (1kHz)
LE
0.6
mH
VC Diameter
25
mm

Magnet

Force factor
Bl
4.5
N/A
Motor constant
Bl/√RE
1.64
N/√W

Diaphragm

Effective diameter
83
mm
Effective area
SD
54
cm²
Moving mass
MMS
4.9
g
Moving mass (without air load)
MMD
4.6
g

Suspensions

Stiffness
KMS
1.0
N/mm
Compliance
CMS
1000
µm/N
Equivalent volume to the compliance
VAS
4.25
L
Mechanical resistance
RMS
0.84
N·s/m

Dimensions

Nominal diameter
4
102
mm
Volume occupied by the driver (estimated)
0.14
L
Dayton Audio DMA105-8 Impedance
Dayton Audio DMA105-8 SPL
Dayton Audio DMA105-8 Dimensions

Export this driver to a simulation software:

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