Peerless GBS-85N25PR03-04

Shallow Woofer

3.5″ / 89 mm
Nominal diameter
120 Hz
Resonance
0.91
Q factor
84 dB
Sensitivity
± 3.05 mm
Linear excursion
30 W
Program Power
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
Sensitivity (1W, 1m, infinite baffle)
SPL1W
83.8
dB
Frequency response
100 - 8000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
120
Hz
Mechanical quality factor
QMS
5.24
Electrical quality factor
QES
1.10
Total quality factor
QTS
0.91

Large signal parameters

Maximum linear excursion
xmax
3.05
mm
Air volume displaced at xmax
VD
11
cm³
Power handling
P
15
W
Program power
Pmax
30
W

Voice Coil

Nominal impedance
Z
4
Ω
DC resistance
RE
3.2
Ω
Inductance (1kHz)
LE
0.1
mH
VC Diameter
26
mm

Magnet

Force factor
Bl
2.9
N/A
Motor constant
Bl/√RE
1.62
N/√W
Air gap height
HAG
3
mm
Material
Neodymium

Diaphragm

Effective diameter
67
mm
Effective area
SD
35
cm²
Moving mass
MMS
3.8
g
Moving mass (without air load)
MMD
3.6
g
Material
Paper

Suspensions

Stiffness
KMS
2.22
N/mm
Compliance
CMS
450
µm/N
Equivalent volume to the compliance
VAS
0.789
L
Mechanical resistance
RMS
0.54
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
Peerless GBS-85N25PR03-04 SPL & Impedance
Peerless GBS-85N25PR03-04 Dimensions

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