Dayton Audio HARB252-8
Mid-range
5″ / 131 mm
Nominal diameter
172 Hz
Resonance
1.74
Q factor
81 dB
Sensitivity
± 1.3 mm
Linear excursion
20 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
81.2
dB
Frequency response
150 - 17000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
172
Hz
Mechanical quality factor
QMS
4.23
Electrical quality factor
QES
2.98
Total quality factor
QTS
1.74
Large signal parameters
Maximum linear excursion
xmax
1.3
mm
Air volume displaced at xmax
VD
2.8
cm³
Power handling
P
10
W
Program power
Pmax
20
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
7.2
Ω
Inductance (1kHz)
LE
0.09
mH
Magnet
Force factor
Bl
3.04
N/A
Motor constant
Bl/√RE
1.13
N/√W
Diaphragm
Effective diameter
52
mm
Effective area
SD
21
cm²
Moving mass
MMS
3.2
g
Moving mass (without air load)
MMD
3.1
g
Suspensions
Stiffness
KMS
3.33
N/mm
Compliance
CMS
300
µm/N
Equivalent volume to the compliance
VAS
0.19
L
Mechanical resistance
RMS
0.82
N·s/m
Dimensions
Nominal diameter
5
″
131
mm
Overall diameter
131
mm
Baffle cutout diameter
21
mm
Overall depth
29
mm
Volume occupied by the driver (estimated)
0.28
L
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2 x 3.5″Miniature
fS
141 Hz
SD
27 cm²
85 - 20000 Hz
QTS
1.41
SPL1W
82 dB
Bl/√RE
1.01
Pmax
5 W
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2 x 3″Full-range
fS
203 Hz
SD
26 cm²
150 - 17000 Hz
QTS
1.42
xmax
2.2 mm
SPL1W
88 dB
Bl/√RE
1.1
Pmax
30 W