P.Audio 18NT-100SW

Name: 18NT-100SW
Brand: P.Audio

Low frequency

18″ / 457 mm

Nominal diameter

41 Hz

Resonance

0.48

Q factor

95 dB

Sensitivity

± 9 mm

Linear excursion

2400 W

Program Power

Sensitivity (1W, 1m, infinite baffle)
SPL_1W: 94.7; dB
Frequency response: 35 - 1000; Hz
Resonance frequency (free air)
f_S: 41.0; Hz
Mechanical quality factor
Q_MS: 11.67
Electrical quality factor
Q_ES: 0.50
Total quality factor
Q_TS: 0.48
Maximum linear excursion
x_max: 9.0; mm
Air volume displaced at x_max
V_D: 1103; cm³
Power handling
P: 1200; W
Program power
P_max: 2400; W
Nominal impedance
Z: 8; Ω
DC resistance
R_E: 5.8; Ω
Inductance (1kHz)
L_E: 1.05; mH
VC Diameter: 99; mm
Winding height
H_VC: 29; mm
Winding material: Copper
Former material: Glass fiber
Flux density
B: 1.3; T
Force factor
Bl: 25.24; N/A
Motor constant
Bl/√R_E: 10.5; N/√W
Air gap height
H_AG: 11; mm
Material: Neodymium
Effective diameter: 397; mm
Effective area
S_D: 1225; cm²
Moving mass
M_MS: 212.1; g
Moving mass (without air load)
M_MD: 182.1; g
Material: Waterproof Paper
Stiffness
K_MS: 14.71; N/mm
Compliance
C_MS: 68; µm/N
Equivalent volume to the compliance
V_AS: 145; L
Mechanical resistance
R_MS: 4.68; N·s/m
Surround material: Cloth
Spider material: Cotton (Silicone impregnated)
Nominal diameter: 18; ″
: 457; mm
Overall diameter: 466; mm
Baffle cutout diameter: 426; mm
Overall depth: 258; mm
Flange thickness: 23; mm
Mounting depth: 235; mm
Volume occupied by the driver (estimated): 6.8; L
Net weight: 9.5; kg
Frame material: Aluminium

Datasheet

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P.Audio 18NT-100SW

Low frequency

Thiele & Small parameters

Large signal parameters

Voice Coil

Magnet

Diaphragm

Suspensions

Dimensions

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