Peerless P820935

Woofer

4″ / 102 mm
Nominal diameter
220 Hz
Resonance
0.99
Q factor
87 dB
Sensitivity
± 1.9 mm
Linear excursion
60 W
Program Power
Discontinued
Peerless P820935 WooferPeerless P820935 Woofer
Impedance
Excursion
Velocity
SPL
Phase
Group delay
Step response
Tone Burst
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
86.8
dB
Frequency response
220 - 7500
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
220
Hz
Mechanical quality factor
QMS
2.16
Electrical quality factor
QES
1.83
Total quality factor
QTS
0.99

Large signal parameters

Maximum linear excursion
xmax
1.9
mm
Air volume displaced at xmax
VD
11
cm³
Power handling
P
30
W
Program power
Pmax
60
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
7.2
Ω
Inductance (1kHz)
LE
0.22
mH
VC Diameter
26
mm

Magnet

Force factor
Bl
5.59
N/A
Motor constant
Bl/√RE
2.08
N/√W
Air gap height
HAG
5
mm
Material
Ferrite

Diaphragm

Effective diameter
86
mm
Effective area
SD
58
cm²
Moving mass
MMS
5.9
g
Moving mass (without air load)
MMD
5.5
g
Material
Paper

Suspensions

Stiffness
KMS
10.75
N/mm
Compliance
CMS
93
µm/N
Equivalent volume to the compliance
VAS
0.446
L
Mechanical resistance
RMS
3.74
N·s/m
Surround material
Rubber

Dimensions

Nominal diameter
4
″
102
mm
Volume occupied by the driver (estimated)
0.4
L
Net weight
1.0
kg
Frame material
Cast Aluminium
SPL & Impedance
Peerless P820935 SPL & Impedance
Peerless P820935 Dimensions

Export this driver to a simulation software:

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fS
210 Hz
SD
20 cm²
100 - 20000 Hz
QTS
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xmax
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Bl/√RE
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Pmax
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SD
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Pmax
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fS
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SD
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xmax
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87 dB
Bl/√RE
1.46
Pmax
50 W

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