Peerless SLS-85S25CP04-08

Woofer

3.5″ / 89 mm
Nominal diameter
74 Hz
Resonance
0.4
Q factor
83 dB
Sensitivity
± 4.5 mm
Linear excursion
50 W
Program Power
Discontinued
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
83.0
dB

Thiele & Small parameters

Resonance frequency (free air)
fS
73.7
Hz
Mechanical quality factor
QMS
4.95
Electrical quality factor
QES
0.44
Total quality factor
QTS
0.40

Large signal parameters

Maximum linear excursion
xmax
4.5
mm
Air volume displaced at xmax
VD
14
cm³
Power handling
P
25
W
Program power
Pmax
50
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
6.4
Ω
Inductance (1kHz)
LE
0.27
mH
VC Diameter
26
mm
Former material
Kapton

Magnet

Force factor
Bl
5.4
N/A
Motor constant
Bl/√RE
2.13
N/√W
Air gap height
HAG
6
mm

Diaphragm

Effective diameter
63
mm
Effective area
SD
31
cm²
Moving mass
MMS
4.3
g
Moving mass (without air load)
MMD
4.2
g

Suspensions

Stiffness
KMS
0.92
N/mm
Compliance
CMS
1087
µm/N
Equivalent volume to the compliance
VAS
1.48
L
Mechanical resistance
RMS
0.4
N·s/m

Dimensions

Nominal diameter
3.5
89
mm
Volume occupied by the driver (estimated)
0.35
L
Net weight
0.88
kg
Peerless SLS-85S25CP04-08 SPL & Impedance
Peerless SLS-85S25CP04-08 Dimensions

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