Peerless TC9FD18-08

Full-range

3.5″ / 89 mm
Nominal diameter
130 Hz
Resonance
0.97
Q factor
85 dB
Sensitivity
± 3.88 mm
Linear excursion
60 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

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Specifications

Sensitivity (1W, 1m, infinite baffle)
SPL1W
85.1
dB
Frequency response
70 - 20000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
130
Hz
Mechanical quality factor
QMS
2.97
Electrical quality factor
QES
1.44
Total quality factor
QTS
0.97

Large signal parameters

Maximum linear excursion
xmax
3.88
mm
Air volume displaced at xmax
VD
14
cm³
Power handling
P
30
W
Program power
Pmax
60
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
6.2
Ω
Inductance (1kHz)
LE
0.11
mH
VC Diameter
19
mm

Magnet

Force factor
Bl
3.13
N/A
Motor constant
Bl/√RE
1.26
N/√W
Air gap height
HAG
4
mm
Material
Ferrite

Diaphragm

Effective diameter
68
mm
Effective area
SD
36
cm²
Moving mass
MMS
2.7
g
Moving mass (without air load)
MMD
2.5
g
Material
Aluminum

Suspensions

Stiffness
KMS
1.92
N/mm
Compliance
CMS
520
µm/N
Equivalent volume to the compliance
VAS
0.978
L
Mechanical resistance
RMS
0.73
N·s/m
Surround material
NBR Rubber

Dimensions

Nominal diameter
3.5
89
mm
Volume occupied by the driver (estimated)
0.11
L
Net weight
0.3
kg
Peerless TC9FD18-08 SPL & Impedance
Peerless TC9FD18-08 Dimensions

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