Celestion TF1225CX

Name: TF1225CX
Brand: Celestion

Coaxial

12″ / 305 mm

Nominal diameter

64 Hz

Resonance

0.36

Q factor

96 dB

Sensitivity

± 4.5 mm

Linear excursion

500 W

Program Power

Sensitivity (1W, 1m, infinite baffle)
SPL_1W: 95.6; dB
Frequency response: 40 - 18000; Hz
Resonance frequency (free air)
f_S: 63.5; Hz
Mechanical quality factor
Q_MS: 3.12
Electrical quality factor
Q_ES: 0.41
Total quality factor
Q_TS: 0.36
Maximum linear excursion
x_max: 4.5; mm
Air volume displaced at x_max
V_D: 239; cm³
Power handling
P: 250; W
Program power
P_max: 500; W
Nominal impedance
Z: 8; Ω
DC resistance
R_E: 5.6; Ω
Inductance (1kHz)
L_E: 1.2; mH
VC Diameter: 64; mm
Winding height
H_VC: 13; mm
Winding material: Round copper
Former material: Polyimide
Force factor
Bl: 17.46; N/A
Motor constant
Bl/√R_E: 7.4; N/√W
Air gap height
H_AG: 8; mm
Weight: 1.2; kg
Material: Ferrite
Effective diameter: 260; mm
Effective area
S_D: 531; cm²
Moving mass
M_MS: 55.6; g
Moving mass (without air load)
M_MD: 47; g
Material: Kevlar loaded paper
Stiffness
K_MS: 9.09; N/mm
Compliance
C_MS: 110; µm/N
Equivalent volume to the compliance
V_AS: 45.1; L
Mechanical resistance
R_MS: 7.11; N·s/m
Surround material: Cloth-sealed
Nominal diameter: 12; ″
: 305; mm
Overall diameter: 309; mm
Baffle cutout diameter: 286; mm
Overall depth: 172; mm
Volume occupied by the driver (estimated): 2.5; L
Net weight: 4.6; kg
Frame material: Pressed steel

Datasheet

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Celestion TF1225CX

Coaxial

Thiele & Small parameters

Large signal parameters

Voice Coil

Magnet

Diaphragm

Suspensions

Dimensions

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