Celestion FTX0820

Name: FTX0820
Brand: Celestion

Coaxial

8″ / 200 mm

Nominal diameter

79 Hz

Resonance

0.28

Q factor

95 dB

Sensitivity

± 4 mm

Linear excursion

400 W

Program Power

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Sensitivity (1W, 1m, infinite baffle)
SPL_1W: 94.6; dB
Frequency response: 70 - 20000; Hz
Resonance frequency (free air)
f_S: 78.8; Hz
Mechanical quality factor
Q_MS: 2.80
Electrical quality factor
Q_ES: 0.31
Total quality factor
Q_TS: 0.28
Maximum linear excursion
x_max: 4.0; mm
Air volume displaced at x_max
V_D: 91; cm³
Power handling
P: 200; W
Program power
P_max: 400; W
Nominal impedance
Z: 8; Ω
DC resistance
R_E: 5.9; Ω
Inductance (1kHz)
L_E: 0.62; mH
VC Diameter: 50; mm
Winding height
H_VC: 12; mm
Winding material: Edgewound copper
Former material: Glass fibre
Force factor
Bl: 14.56; N/A
Motor constant
Bl/√R_E: 6.02; N/√W
Air gap height
H_AG: 8; mm
Weight: 1.5; kg
Material: Ferrite
Effective diameter: 170; mm
Effective area
S_D: 227; cm²
Moving mass
M_MS: 22.7; g
Moving mass (without air load)
M_MD: 20; g
Material: Kevlar loaded paper
Stiffness
K_MS: 5.56; N/mm
Compliance
C_MS: 180; µm/N
Equivalent volume to the compliance
V_AS: 13.1; L
Mechanical resistance
R_MS: 4.01; N·s/m
Surround material: Cloth-sealed
Nominal diameter: 8; ″
: 200; mm
Overall diameter: 225; mm
Baffle cutout diameter: 187; mm
Overall depth: 123; mm
Volume occupied by the driver (estimated): 1.5; L
Net weight: 4.1; kg
Frame material: Cast aluminium

Datasheet

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Celestion FTX0820

Coaxial

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Specifications

Thiele & Small parameters

Large signal parameters

Voice Coil

Magnet

Diaphragm

Suspensions

Dimensions

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