P.Audio C18-650EL v3

Name: C18-650EL v3
Brand: P.Audio

Low frequency

18″ / 457 mm

Nominal diameter

41 Hz

Resonance

0.52

Q factor

96 dB

Sensitivity

± 5.25 mm

Linear excursion

2000 W

Program Power

Sensitivity (1W, 1m, infinite baffle)
SPL_1W: 95.5; dB
Frequency response: 35 - 1000; Hz
Resonance frequency (free air)
f_S: 41.0; Hz
Mechanical quality factor
Q_MS: 12.26
Electrical quality factor
Q_ES: 0.55
Total quality factor
Q_TS: 0.52
Maximum linear excursion
x_max: 5.25; mm
Air volume displaced at x_max
V_D: 643; cm³
Power handling
P: 1000; W
Program power
P_max: 2000; W
Nominal impedance
Z: 8; Ω
DC resistance
R_E: 5.6; Ω
Inductance (1kHz)
L_E: 0.83; mH
VC Diameter: 99; mm
Winding height
H_VC: 25.5; mm
Winding material: Flat aluminium wire
Former material: Glass fiber
Flux density
B: 1.0; T
Force factor
Bl: 21.46; N/A
Motor constant
Bl/√R_E: 9.07; N/√W
Air gap height
H_AG: 15; mm
Material: Ferrite
Effective diameter: 396; mm
Effective area
S_D: 1225; cm²
Moving mass
M_MS: 172.4; g
Moving mass (without air load)
M_MD: 143.7; g
Material: Paper
Stiffness
K_MS: 11.91; N/mm
Compliance
C_MS: 84; µm/N
Equivalent volume to the compliance
V_AS: 179; L
Mechanical resistance
R_MS: 3.62; N·s/m
Surround material: Cloth
Spider material: Cotton (Double)
Nominal diameter: 18; ″
: 457; mm
Overall diameter: 446; mm
Baffle cutout diameter: 426; mm
Overall depth: 226; mm
Flange thickness: 19; mm
Mounting depth: 207; mm
Volume occupied by the driver (estimated): 7.7; L
Net weight: 13.9; kg
Frame material: Aluminium

Datasheet

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P.Audio C18-650EL v3

Low frequency

Thiele & Small parameters

Large signal parameters

Voice Coil

Magnet

Diaphragm

Suspensions

Dimensions

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