RCF LF18G400

Name: LF18G400
Brand: RCF

Woofer

18″ / 457 mm

Nominal diameter

28 Hz

Resonance

0.27

Q factor

95 dB

Sensitivity

± 9 mm

Linear excursion

2000 W

Program Power

Discontinued

Sensitivity (1W, 1m, infinite baffle)
SPL_1W: 95.4; dB
Frequency response: 25 - 1000; Hz
Resonance frequency (free air)
f_S: 28.0; Hz
Mechanical quality factor
Q_MS: 4.60
Electrical quality factor
Q_ES: 0.29
Total quality factor
Q_TS: 0.27
Maximum linear excursion
x_max: 9.0; mm
Maximum excursion before damage
x_lim: 25.0; mm
Air volume displaced at x_max
V_D: 1080; cm³
Power handling
P: 1000; W
Program power
P_max: 2000; W
Nominal impedance
Z: 8; Ω
DC resistance
R_E: 5.1; Ω
Inductance (1kHz)
L_E: 1.2; mH
VC Diameter: 102; mm
Winding height
H_VC: 25; mm
Winding material: Copper
Force factor
Bl: 24.2; N/A
Motor constant
Bl/√R_E: 10.7; N/√W
Material: Ceramic
Effective diameter: 395; mm
Effective area
S_D: 1200; cm²
Moving mass
M_MS: 190; g
Moving mass (without air load)
M_MD: 160.7; g
Stiffness
K_MS: 5.68; N/mm
Compliance
C_MS: 176; µm/N
Equivalent volume to the compliance
V_AS: 360; L
Mechanical resistance
R_MS: 7.27; N·s/m
Surround material: Polycotton
Nominal diameter: 18; ″
: 457; mm
Overall diameter: 465; mm
Baffle cutout diameter: 424; mm
Overall depth: 228; mm
Flange thickness: 14; mm
Mounting depth: 214; mm
Volume occupied by the driver: 7.0; L
Net weight: 13.3; kg

Datasheet

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RCF LF18G400

Woofer

Thiele & Small parameters

Large signal parameters

Voice Coil

Magnet

Diaphragm

Suspensions

Dimensions

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