Peerless HDS-P830961
Woofer
6.5″ / 165 mm
Nominal diameter
39 Hz
Resonance
0.32
Q factor
88 dB
Sensitivity
± 5.1 mm
Linear excursion
100 W
Program Power
Discontinued
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
87.8
dB
Frequency response
20 - 20000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
39.0
Hz
Mechanical quality factor
QMS
2.20
Electrical quality factor
QES
0.38
Total quality factor
QTS
0.32
Large signal parameters
Maximum linear excursion
xmax
5.1
mm
Air volume displaced at xmax
VD
73
cm³
Power handling
P
50
W
Program power
Pmax
100
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
3.4
Ω
Inductance (1kHz)
LE
0.19
mH
VC Diameter
32
mm
Former material
Aluminium
Magnet
Force factor
Bl
6.33
N/A
Motor constant
Bl/√RE
3.42
N/√W
Air gap height
HAG
6
mm
Diaphragm
Effective diameter
135
mm
Effective area
SD
143
cm²
Moving mass
MMS
18
g
Moving mass (without air load)
MMD
16.8
g
Suspensions
Stiffness
KMS
1.08
N/mm
Compliance
CMS
924
µm/N
Equivalent volume to the compliance
VAS
26.6
L
Mechanical resistance
RMS
2.0
N·s/m
Dimensions
Nominal diameter
6.5
″
165
mm
Volume occupied by the driver (estimated)
0.64
L
Net weight
1.58
kg
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fS
40 Hz
SD
126 cm²
30 - 3000 Hz
QTS
0.34
xmax
7.0 mm
SPL1W
87 dB
Bl/√RE
2.79
Pmax
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fS
37 Hz
SD
136 cm²
45 - 3000 Hz
QTS
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xmax
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Bl/√RE
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8″Woofer
fS
43 Hz
SD
126 cm²
45 - 4000 Hz
QTS
0.37
xmax
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SPL1W
88 dB
Bl/√RE
2.84
Pmax
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