15″ / 381 mm
Nominal diameter
44 Hz
Resonance
0.33
Q factor
98 dB
Sensitivity
± 6.5 mm
Linear excursion
800 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
Sensitivity (1w, 1m, infinite baffle)
SPL1W
98.0
dB
Frequency response
40 - 3000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
43.6
Hz
Mechanical quality factor
QMS
2.76
Electrical quality factor
QES
0.37
Total quality factor
QTS
0.33
Large signal parameters
Maximum linear excursion
xmax
6.5
mm
Air volume displaced at xmax
VD
556
cm³
Power handling
P
400
W
Program power
Pmax
800
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.5
Ω
Inductance (1kHz)
LE
0.79
mH
VC Diameter
75
mm
Winding height
HVC
17
mm
Winding material
Edgewound copper clad aluminium
Former material
Glass Fibre
Magnet
Force factor
Bl
17.03
N/A
Motor constant
Bl/√RE
7.27
N/√W
Air gap height
HAG
8
mm
Weight
2.44
kg
Diaphragm
Effective diameter
330
mm
Effective area
SD
855
cm²
Moving mass
MMS
71.9
g
Moving mass (without air load)
MMD
54.6
g
Material
Kevlar loaded paper
Suspensions
Stiffness
KMS
5.26
N/mm
Compliance
CMS
190
µm/N
Equivalent volume to the compliance
VAS
192
L
Mechanical resistance
RMS
7.15
N·s/m
Surround material
Cloth-sealed
Dimensions
Nominal diameter
15
″
381
mm
Overall diameter
385
mm
Baffle cutout diameter
352
mm
Overall depth
161
mm
Volume occupied by the driver (estimated)
3.5
L
Net weight
6.5
kg
Frame material
Pressed steel
Similar speaker drivers to Celestion TF1530e
15″Guitar Speaker
fS
42 Hz
SD
865 cm²
42 - 2900 Hz
QTS
0.31
xmax
3.3 mm
SPL1W
98 dB
Bl/√RE
8.09
Pmax
600 W
15″Coaxial
fS
41 Hz
SD
829 cm²
50 - 16000 Hz
QTS
0.30
xmax
7.8 mm
SPL1W
99 dB
Bl/√RE
7.6
Pmax
900 W
15″Low frequency
fS
44 Hz
SD
855 cm²
40 - 3500 Hz
QTS
0.36
xmax
4.3 mm
SPL1W
97 dB
Bl/√RE
7.93
Pmax
600 W