Dayton Audio DMA105-4
4Ω
8ΩFull-range
4″ / 102 mm
Nominal diameter
73 Hz
Resonance
0.51
Q factor
86 dB
Sensitivity
± 2.5 mm
Linear excursion
70 W
Program Power
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Available on (affiliate link)
Parts Express
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Specifications
Sensitivity (1w, 1m, infinite baffle)
SPL1W
86.1
dB
Frequency response
70 - 20000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
72.7
Hz
Mechanical quality factor
QMS
2.60
Electrical quality factor
QES
0.63
Total quality factor
QTS
0.51
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
4
Ω
DC resistance
RE
3.4
Ω
Inductance (1kHz)
LE
0.3
mH
VC Diameter
25
mm
Magnet
Force factor
Bl
3.4
N/A
Motor constant
Bl/√RE
1.84
N/√W
Diaphragm
Effective diameter
83
mm
Effective area
SD
54
cm²
Moving mass
MMS
4.5
g
Moving mass (without air load)
MMD
4.2
g
Suspensions
Stiffness
KMS
0.94
N/mm
Compliance
CMS
1060
µm/N
Equivalent volume to the compliance
VAS
4.25
L
Mechanical resistance
RMS
0.79
N·s/m
Dimensions
Nominal diameter
4
″
102
mm
Volume occupied by the driver (estimated)
0.14
L
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Ciare CS1302 x 4 Ω
5″Subwoofer
fS
70 Hz
SD
75 cm²
50 - 1500 Hz
QTS
0.46
xmax
5.0 mm
SPL1W
87 dB
Bl/√RE
1.88
Pmax
90 W
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5″Woofer
fS
70 Hz
SD
54 cm²
70 - 12000 Hz
QTS
0.48
xmax
4.0 mm
SPL1W
86 dB
Bl/√RE
1.98
Pmax
60 W
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4″Woofer
fS
80 Hz
SD
64 cm²
70 - 4500 Hz
QTS
0.55
xmax
2.0 mm
SPL1W
86 dB
Bl/√RE
1.92
Pmax
200 W