P.Audio C18-1200

Name: C18-1200
Brand: P.Audio

Low frequency

18″ / 457 mm

Nominal diameter

38 Hz

Resonance

0.48

Q factor

94 dB

Sensitivity

± 8.5 mm

Linear excursion

2400 W

Program Power

Sensitivity (1W, 1m, infinite baffle)
SPL_1W: 94.0; dB
Frequency response: 35 - 1000; Hz
Resonance frequency (free air)
f_S: 38.0; Hz
Mechanical quality factor
Q_MS: 9.76
Electrical quality factor
Q_ES: 0.50
Total quality factor
Q_TS: 0.48
Maximum linear excursion
x_max: 8.5; mm
Air volume displaced at x_max
V_D: 1041; cm³
Power handling
P: 1200; W
Program power
P_max: 2400; W
Nominal impedance
Z: 8; Ω
DC resistance
R_E: 5.9; Ω
Inductance (1kHz)
L_E: 0.98; mH
VC Diameter: 114; mm
Winding height
H_VC: 31; mm
Winding material: Copper
Former material: Glass fiber
Flux density
B: 1.2; T
Force factor
Bl: 26.82; N/A
Motor constant
Bl/√R_E: 11.0; N/√W
Air gap height
H_AG: 14; mm
Material: Ferrite
Effective diameter: 395; mm
Effective area
S_D: 1225; cm²
Moving mass
M_MS: 243.9; g
Moving mass (without air load)
M_MD: 213.8; g
Material: Waterproof Paper
Stiffness
K_MS: 14.29; N/mm
Compliance
C_MS: 70; µm/N
Equivalent volume to the compliance
V_AS: 149; L
Mechanical resistance
R_MS: 5.97; N·s/m
Surround material: Cloth
Spider material: Cotton (Double Silicone)
Nominal diameter: 18; ″
: 457; mm
Overall diameter: 467; mm
Baffle cutout diameter: 425; mm
Overall depth: 224; mm
Flange thickness: 23; mm
Mounting depth: 201; mm
Volume occupied by the driver (estimated): 9.3; L
Net weight: 18.1; kg
Frame material: Aluminium

Datasheet

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P.Audio C18-1200

Low frequency

Thiele & Small parameters

Large signal parameters

Voice Coil

Magnet

Diaphragm

Suspensions

Dimensions

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