P.Audio GM18-100F

Name: GM18-100F
Brand: P.Audio

Low frequency

18″ / 457 mm

Nominal diameter

36 Hz

Resonance

0.45

Q factor

94 dB

Sensitivity

± 8.25 mm

Linear excursion

2400 W

Program Power

Sensitivity (1W, 1m, infinite baffle)
SPL_1W: 93.9; dB
Frequency response: 30 - 1000; Hz
Resonance frequency (free air)
f_S: 36.0; Hz
Mechanical quality factor
Q_MS: 9.90
Electrical quality factor
Q_ES: 0.48
Total quality factor
Q_TS: 0.45
Maximum linear excursion
x_max: 8.25; mm
Air volume displaced at x_max
V_D: 1011; cm³
Power handling
P: 1200; W
Program power
P_max: 2400; W
Nominal impedance
Z: 8; Ω
DC resistance
R_E: 5.2; Ω
Inductance (1kHz)
L_E: 1.0; mH
VC Diameter: 102; mm
Winding height
H_VC: 31.5; mm
Winding material: Round Copper Wire
Former material: Glass fiber
Flux density
B: 1.0; T
Force factor
Bl: 24.04; N/A
Motor constant
Bl/√R_E: 10.5; N/√W
Air gap height
H_AG: 15; mm
Material: Ferrite
Effective diameter: 392; mm
Effective area
S_D: 1225; cm²
Moving mass
M_MS: 232; g
Moving mass (without air load)
M_MD: 202; g
Material: Waterproof Paper
Stiffness
K_MS: 12.35; N/mm
Compliance
C_MS: 81; µm/N
Equivalent volume to the compliance
V_AS: 173; L
Mechanical resistance
R_MS: 5.36; N·s/m
Surround material: Cloth
Spider material: Cotton (Silicone Impregnated)
Nominal diameter: 18; ″
: 457; mm
Overall diameter: 466; mm
Baffle cutout diameter: 430; mm
Overall depth: 232; mm
Flange thickness: 11; mm
Mounting depth: 221; mm
Volume occupied by the driver (estimated): 8.5; L
Net weight: 15.2; kg
Frame material: Aluminium

Datasheet

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P.Audio GM18-100F

Low frequency

Thiele & Small parameters

Large signal parameters

Voice Coil

Magnet

Diaphragm

Suspensions

Dimensions

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