Dayton Audio DMA45-4

4Ω
8Ω

Full-range

1.5″ / 38 mm
Nominal diameter
151 Hz
Resonance
0.56
Q factor
78 dB
Sensitivity
± 2 mm
Linear excursion
20 W
Program Power
Dayton Audio DMA45-4 Full-rangeDayton Audio DMA45-4 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

Available on (affiliate link)

Parts Express
$

Specifications

Sensitivity (1W, 1m, infinite baffle)
SPL1W
77.6
dB
Frequency response
150 - 20000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
151
Hz
Mechanical quality factor
QMS
5.23
Electrical quality factor
QES
0.62
Total quality factor
QTS
0.56

Large signal parameters

Maximum linear excursion
xmax
2.0
mm
Air volume displaced at xmax
VD
1.7
cm³
Power handling
P
10
W
Program power
Pmax
20
W

Voice Coil

Nominal impedance
Z
4
Ω
DC resistance
RE
3.7
Ω
Inductance (1kHz)
LE
0.3
mH
VC Diameter
19
mm
Former material
Kapton/Polyimide

Magnet

Force factor
Bl
2.2
N/A
Motor constant
Bl/√RE
1.14
N/√W

Diaphragm

Effective diameter
33
mm
Effective area
SD
8.6
cm²
Moving mass
MMS
1.3
g
Moving mass (without air load)
MMD
1.3
g

Suspensions

Stiffness
KMS
1.21
N/mm
Compliance
CMS
830
µm/N
Equivalent volume to the compliance
VAS
0.085
L
Mechanical resistance
RMS
0.24
N·s/m
Surround material
Rubber

Dimensions

Nominal diameter
1.5
″
38
mm
Impedance
SPL
Dayton Audio DMA45-4 Impedance
Dayton Audio DMA45-4 SPL
Dayton Audio DMA45-4 Dimensions
DatasheetDatasheet

Export this driver to a simulation software:

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Similar speaker drivers to Dayton Audio DMA45-4

Dayton Audio DMA45-8 Full-range
Dayton Audio  DMA45-88 Ω
1.5″Full-range
fS
151 Hz
SD
8.6 cm²
150 - 20000 Hz
QTS
0.59
xmax
2.0 mm
SPL1W
77 dB
Bl/√RE
1.61
Pmax
20 W