Peerless PMT-30N18AL03-04
Miniature
1.2″ / 30 mm
Nominal diameter
260 Hz
Resonance
0.65
Q factor
78 dB
Sensitivity
± 1.23 mm
Linear excursion
4 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
78.2
dB
Frequency response
260 - 20000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
260
Hz
Mechanical quality factor
QMS
1.92
Electrical quality factor
QES
0.98
Total quality factor
QTS
0.65
Large signal parameters
Maximum linear excursion
xmax
1.23
mm
Air volume displaced at xmax
VD
0.6
cm³
Power handling
P
2
W
Program power
Pmax
4
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
3.5
Ω
Inductance (1kHz)
LE
0.05
mH
VC Diameter
18
mm
Magnet
Force factor
Bl
1.68
N/A
Motor constant
Bl/√RE
0.898
N/√W
Air gap height
HAG
1
mm
Material
Neodymium
Diaphragm
Effective diameter
25
mm
Effective area
SD
4.9
cm²
Moving mass
MMS
0.5
g
Moving mass (without air load)
MMD
0.5
g
Material
Aluminum
Suspensions
Stiffness
KMS
1.28
N/mm
Compliance
CMS
780
µm/N
Equivalent volume to the compliance
VAS
0.026
L
Mechanical resistance
RMS
0.41
N·s/m
Surround material
Foam
Dimensions
Nominal diameter
1.2
″
30
mm
Net weight
0.024
kg
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1.2″Miniature
fS
210 Hz
SD
4.9 cm²
210 - 20000 Hz
QTS
0.50
xmax
1.6 mm
SPL1W
78 dB
Bl/√RE
1.02
Pmax
4 W
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1″Full-range
fS
220 Hz
SD
2.3 cm²
220 - 20000 Hz
QTS
0.54
xmax
0.8 mm
SPL1W
76 dB
Bl/√RE
0.599
Pmax
2 W
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1″Full-range
fS
220 Hz
SD
6.2 cm²
200 - 19000 Hz
QTS
0.73
xmax
0.9 mm
SPL1W
80 dB
Bl/√RE
0.892
Pmax
6 W