Celestion FTX1530

Name: FTX1530
Brand: Celestion

Coaxial

15″ / 381 mm

Nominal diameter

43 Hz

Resonance

0.28

Q factor

98 dB

Sensitivity

± 6 mm

Linear excursion

800 W

Program Power

Sensitivity (1W, 1m, infinite baffle)
SPL_1W: 98.0; dB
Frequency response: 40 - 18000; Hz
Resonance frequency (free air)
f_S: 42.5; Hz
Mechanical quality factor
Q_MS: 3.81
Electrical quality factor
Q_ES: 0.30
Total quality factor
Q_TS: 0.28
Maximum linear excursion
x_max: 6.0; mm
Air volume displaced at x_max
V_D: 513; cm³
Power handling
P: 400; W
Program power
P_max: 800; W
Nominal impedance
Z: 8; Ω
DC resistance
R_E: 5.4; Ω
Inductance (1kHz)
L_E: 0.82; mH
VC Diameter: 75; mm
Winding height
H_VC: 16; mm
Winding material: Edgewound copper clad aluminium
Former material: Glass fibre
Force factor
Bl: 20.16; N/A
Motor constant
Bl/√R_E: 8.71; N/√W
Air gap height
H_AG: 8; mm
Weight: 2.3; kg
Material: Ferrite
Effective diameter: 330; mm
Effective area
S_D: 855; cm²
Moving mass
M_MS: 84.3; g
Moving mass (without air load)
M_MD: 66.9; g
Material: Kevlar loaded paper
Stiffness
K_MS: 5.88; N/mm
Compliance
C_MS: 170; µm/N
Equivalent volume to the compliance
V_AS: 172; L
Mechanical resistance
R_MS: 5.91; N·s/m
Surround material: Cloth-sealed
Nominal diameter: 15; ″
: 381; mm
Overall diameter: 387; mm
Baffle cutout diameter: 351; mm
Overall depth: 176; mm
Volume occupied by the driver (estimated): 4.6; L
Net weight: 9.1; kg
Frame material: Cast aluminium

Datasheet

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Celestion FTX1530

Coaxial

Thiele & Small parameters

Large signal parameters

Voice Coil

Magnet

Diaphragm

Suspensions

Dimensions

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