Eighteen Sound 18NLW9400

4Ω

Subwoofer

18″ / 462 mm

Nominal diameter

32 Hz

Resonance

0.22

Q factor

97 dB

Sensitivity

± 9.5 mm

Linear excursion

2400 W

Program Power

Eighteen Sound 18NLW9400 Subwoofer

Sensitivity (1W, 1m, infinite baffle)
SPL_1W: 96.9; dB
Frequency response: 30 - 2500; Hz
Resonance frequency (free air)
f_S: 32.0; Hz
Mechanical quality factor
Q_MS: 6.10
Electrical quality factor
Q_ES: 0.23
Total quality factor
Q_TS: 0.22
Maximum linear excursion
x_max: 9.5; mm
Air volume displaced at x_max
V_D: 1164; cm³
Power handling
P: 1200; W
Program power
P_max: 2400; W
Nominal impedance
Z: 4; Ω
DC resistance
R_E: 2.6; Ω
Inductance (1kHz)
L_E: 1.25; mH
VC Diameter: 100; mm
Winding material: Copper
Force factor
Bl: 20.5; N/A
Motor constant
Bl/√R_E: 12.7; N/√W
Material: Neodymium
Effective diameter: 395; mm
Effective area
S_D: 1225; cm²
Moving mass
M_MS: 185; g
Moving mass (without air load)
M_MD: 155.3; g
Material: Weather protected
Stiffness
K_MS: 7.46; N/mm
Compliance
C_MS: 134; µm/N
Equivalent volume to the compliance
V_AS: 278; L
Mechanical resistance
R_MS: 6.1; N·s/m
Nominal diameter: 18; ″
: 462; mm
Overall diameter: 462; mm
Baffle cutout diameter: 416; mm
Overall depth: 223; mm
Flange thickness: 21; mm
Mounting depth: 202; mm
Volume occupied by the driver (estimated): 5.8; L
Net weight: 8.7; kg

Eighteen Sound 18NLW9400 SPL

Eighteen Sound 18NLW9400 Dimensions

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