Precision Devices PD.184C002

Name: Precision Devices PD.184C002
Brand: Precision Devices

Subwoofer

18″ / 457 mm

Nominal diameter

40 Hz

Resonance

0.34

Q factor

98 dB

Sensitivity

± 9.7 mm

Linear excursion

1800 W

Program Power

Sensitivity (1W, 1m, infinite baffle)
SPL_1W: 97.6; dB
Frequency response: 30 - 500; Hz
Resonance frequency (free air)
f_S: 40.0; Hz
Mechanical quality factor
Q_MS: 5.67
Electrical quality factor
Q_ES: 0.36
Total quality factor
Q_TS: 0.34
Maximum linear excursion
x_max: 9.7; mm
Air volume displaced at x_max
V_D: 1117; cm³
Power handling
P: 900; W
Program power
P_max: 1800; W
Nominal impedance
Z: 8; Ω
DC resistance
R_E: 5.2; Ω
Inductance (1kHz)
L_E: 2.31; mH
VC Diameter: 102; mm
Winding height
H_VC: 26; mm
Winding material: Copper Flat Wire
Former material: Glass Fibre
Flux density
B: 1.1; T
Force factor
Bl: 21.0; N/A
Motor constant
Bl/√R_E: 9.21; N/√W
Air gap height
H_AG: 13; mm
Weight: 3.3; kg
Material: Ceramic
Effective diameter: 383; mm
Effective area
S_D: 1152; cm²
Moving mass
M_MS: 112; g
Moving mass (without air load)
M_MD: 83.5; g
Material: Fibre loaded Paper
Stiffness
K_MS: 7.09; N/mm
Compliance
C_MS: 141; µm/N
Equivalent volume to the compliance
V_AS: 268; L
Mechanical resistance
R_MS: 4.96; N·s/m
Nominal diameter: 18; ″
: 457; mm
Overall diameter: 474; mm
Baffle cutout diameter: 414; mm
Overall depth: 176; mm
Flange thickness: 15; mm
Mounting depth: 161; mm
Volume occupied by the driver (estimated): 7.3; L
Net weight: 15.5; kg

Datasheet

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Precision Devices PD.184C002

Subwoofer

Thiele & Small parameters

Large signal parameters

Voice Coil

Magnet

Diaphragm

Suspensions

Dimensions

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