Celestion CF1840H

Name: CF1840H
Brand: Celestion

Low frequency

18″ / 457 mm

Nominal diameter

39 Hz

Resonance

0.35

Q factor

96 dB

Sensitivity

± 8 mm

Linear excursion

2000 W

Program Power

Sensitivity (1W, 1m, infinite baffle)
SPL_1W: 95.6; dB
Frequency response: 30 - 2500; Hz
Resonance frequency (free air)
f_S: 38.5; Hz
Mechanical quality factor
Q_MS: 3.92
Electrical quality factor
Q_ES: 0.39
Total quality factor
Q_TS: 0.35
Maximum linear excursion
x_max: 8.0; mm
Air volume displaced at x_max
V_D: 907; cm³
Power handling
P: 1000; W
Program power
P_max: 2000; W
Nominal impedance
Z: 4; Ω
DC resistance
R_E: 3.0; Ω
Inductance (1kHz)
L_E: 0.95; mH
VC Diameter: 100; mm
Winding height
H_VC: 25; mm
Winding material: Round copper
Former material: Glass fibre
Force factor
Bl: 17.41; N/A
Motor constant
Bl/√R_E: 9.99; N/√W
Air gap height
H_AG: 9.5; mm
Weight: 3.18; kg
Material: Ferrite
Effective diameter: 380; mm
Effective area
S_D: 1134; cm²
Moving mass
M_MS: 158.7; g
Moving mass (without air load)
M_MD: 131.4; g
Material: Carbon fibre loaded paper
Stiffness
K_MS: 9.09; N/mm
Compliance
C_MS: 110; µm/N
Equivalent volume to the compliance
V_AS: 197; L
Mechanical resistance
R_MS: 9.76; N·s/m
Nominal diameter: 18; ″
: 457; mm
Overall diameter: 460; mm
Baffle cutout diameter: 414; mm
Overall depth: 220; mm
Volume occupied by the driver (estimated): 6.9; L
Net weight: 11.6; kg
Frame material: Cast aluminium

Datasheet

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Celestion CF1840H

Low frequency

Thiele & Small parameters

Large signal parameters

Voice Coil

Magnet

Diaphragm

Suspensions

Dimensions

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