Peerless GBS-85N25PR07-04
Shallow Woofer
3.5″ / 89 mm
Nominal diameter
130 Hz
Resonance
0.7
Q factor
83 dB
Sensitivity
± 2.95 mm
Linear excursion
24 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
83.2
dB
Frequency response
100 - 1000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
130
Hz
Mechanical quality factor
QMS
5.37
Electrical quality factor
QES
0.81
Total quality factor
QTS
0.70
Large signal parameters
Maximum linear excursion
xmax
2.95
mm
Air volume displaced at xmax
VD
10
cm³
Power handling
P
12
W
Program power
Pmax
24
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
3.5
Ω
Inductance (1kHz)
LE
0.31
mH
VC Diameter
26
mm
Magnet
Force factor
Bl
4.48
N/A
Motor constant
Bl/√RE
2.39
N/√W
Air gap height
HAG
3
mm
Material
Neodymium
Diaphragm
Effective diameter
67
mm
Effective area
SD
35
cm²
Moving mass
MMS
5.7
g
Moving mass (without air load)
MMD
5.6
g
Material
Paper
Suspensions
Stiffness
KMS
3.85
N/mm
Compliance
CMS
260
µm/N
Equivalent volume to the compliance
VAS
0.465
L
Mechanical resistance
RMS
0.87
N·s/m
Surround material
Rubber
Dimensions
Nominal diameter
3.5
″
89
mm
Volume occupied by the driver (estimated)
0.1
L
Net weight
0.121
kg
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2.5″Full-range
fS
115 Hz
SD
20 cm²
QTS
0.68
xmax
2.7 mm
SPL1W
81 dB
Bl/√RE
1.53
Pmax
40 W
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3″Full-range
fS
129 Hz
SD
33 cm²
120 - 18000 Hz
QTS
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xmax
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SPL1W
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Bl/√RE
1.85
Pmax
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fS
109 Hz
SD
25 cm²
85 - 13000 Hz
QTS
0.63
xmax
4.0 mm
SPL1W
82 dB
Bl/√RE
1.76
Pmax
40 W