Celestion TF1520

Name: TF1520
Brand: Celestion

Mid Bass

15″ / 381 mm

Nominal diameter

55 Hz

Resonance

0.72

Q factor

96 dB

Sensitivity

± 3 mm

Linear excursion

300 W

Program Power

Discontinued

Sensitivity (1W, 1m, infinite baffle)
SPL_1W: 96.0; dB
Frequency response: 45 - 4000; Hz
Resonance frequency (free air)
f_S: 54.9; Hz
Mechanical quality factor
Q_MS: 5.17
Electrical quality factor
Q_ES: 0.84
Total quality factor
Q_TS: 0.72
Maximum linear excursion
x_max: 3.0; mm
Air volume displaced at x_max
V_D: 257; cm³
Power handling
P: 150; W
Program power
P_max: 300; W
Nominal impedance
Z: 8; Ω
DC resistance
R_E: 5.8; Ω
Inductance (1kHz)
L_E: 0.8; mH
VC Diameter: 50; mm
Winding height
H_VC: 14.5; mm
Winding material: Round copper
Former material: Polyimide
Force factor
Bl: 12.48; N/A
Motor constant
Bl/√R_E: 5.19; N/√W
Air gap height
H_AG: 8; mm
Weight: 1.1; kg
Material: Ferrite
Effective diameter: 330; mm
Effective area
S_D: 855; cm²
Moving mass
M_MS: 65.5; g
Moving mass (without air load)
M_MD: 48.2; g
Material: Kevlar loaded paper
Stiffness
K_MS: 7.69; N/mm
Compliance
C_MS: 130; µm/N
Equivalent volume to the compliance
V_AS: 133; L
Mechanical resistance
R_MS: 4.37; N·s/m
Surround material: Cloth-sealed
Nominal diameter: 15; ″
: 381; mm
Overall diameter: 385; mm
Baffle cutout diameter: 352; mm
Overall depth: 158; mm
Volume occupied by the driver (estimated): 2.9; L
Net weight: 5.0; kg
Frame material: Pressed steel

Datasheet

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Celestion TF1520

Mid Bass

Thiele & Small parameters

Large signal parameters

Voice Coil

Magnet

Diaphragm

Suspensions

Dimensions

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