Celestion TFX0515

Coaxial

5″ / 125 mm
Nominal diameter
74 Hz
Resonance
0.47
Q factor
89 dB
Sensitivity
± 3.75 mm
Linear excursion
300 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
88.8
dB
Frequency response
80 - 20000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
74.0
Hz
Mechanical quality factor
QMS
8.29
Electrical quality factor
QES
0.50
Total quality factor
QTS
0.47

Large signal parameters

Maximum linear excursion
xmax
3.75
mm
Air volume displaced at xmax
VD
36
cm³
Power handling
P
150
W
Program power
Pmax
300
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
5.8
Ω
Inductance (1kHz)
LE
0.36
mH
VC Diameter
38
mm
Winding height
HVC
10.5
mm
Winding material
Round copper
Former material
Polyimide

Magnet

Force factor
Bl
6.96
N/A
Motor constant
Bl/√RE
2.9
N/√W
Air gap height
HAG
6
mm
Weight
0.65
kg
Material
Ferrite

Diaphragm

Effective diameter
110
mm
Effective area
SD
95
cm²
Moving mass
MMS
9.1
g
Moving mass (without air load)
MMD
8.4
g
Material
Kevlar loaded paper

Suspensions

Stiffness
KMS
1.97
N/mm
Compliance
CMS
509
µm/N
Equivalent volume to the compliance
VAS
6.53
L
Mechanical resistance
RMS
0.509
N·s/m
Surround material
Elastomer

Dimensions

Nominal diameter
5
125
mm
Overall size
136 x 151
mm
Baffle cutout diameter
116
mm
Overall depth
72
mm
Volume occupied by the driver (estimated)
0.43
L
Net weight
1.6
kg
Frame material
Pressed steel
Celestion TFX0515 Graph

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