RCF LF18X451

Name: RCF LF18X451
Brand: RCF

Subwoofer

18″ / 457 mm

Nominal diameter

30 Hz

Resonance

0.28

Q factor

95 dB

Sensitivity

± 14 mm

Linear excursion

3600 W

Program Power

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Sensitivity (1W, 1m, infinite baffle)
SPL_1W: 94.6; dB
Frequency response: 30 - 1000; Hz
Resonance frequency (free air)
f_S: 30.0; Hz
Mechanical quality factor
Q_MS: 6.70
Electrical quality factor
Q_ES: 0.29
Total quality factor
Q_TS: 0.28
Maximum linear excursion
x_max: 14.0; mm
Maximum excursion before damage
x_lim: 27.0; mm
Air volume displaced at x_max
V_D: 1680; cm³
Power handling
P: 1800; W
Program power
P_max: 3600; W
Nominal impedance
Z: 8; Ω
DC resistance
R_E: 5.4; Ω
Inductance (1kHz)
L_E: 1.38; mH
VC Diameter: 114; mm
Winding height
H_VC: 34; mm
Winding material: Copper
Force factor
Bl: 30.5; N/A
Motor constant
Bl/√R_E: 13.1; N/√W
Air gap height
H_AG: 15; mm
Effective diameter: 395; mm
Effective area
S_D: 1200; cm²
Moving mass
M_MS: 260; g
Moving mass (without air load)
M_MD: 230.7; g
Stiffness
K_MS: 9.43; N/mm
Compliance
C_MS: 106; µm/N
Equivalent volume to the compliance
V_AS: 220; L
Mechanical resistance
R_MS: 7.31; N·s/m
Spider material: with silicon damping
Nominal diameter: 18; ″
: 457; mm
Overall diameter: 465; mm
Baffle cutout diameter: 424; mm
Overall depth: 212; mm
Volume occupied by the driver: 6.5; L
Net weight: 15.2; kg

Datasheet

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RCF LF18X451

Subwoofer

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Specifications

Thiele & Small parameters

Large signal parameters

Voice Coil

Magnet

Diaphragm

Suspensions

Dimensions

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