Precision Devices PD.185C001

Name: PD.185C001
Brand: Precision Devices

Subwoofer

18″ / 457 mm

Nominal diameter

32 Hz

Resonance

0.4

Q factor

95 dB

Sensitivity

± 10.5 mm

Linear excursion

1800 W

Program Power

Sensitivity (1W, 1m, infinite baffle)
SPL_1W: 94.8; dB
Frequency response: 30 - 300; Hz
Resonance frequency (free air)
f_S: 32.0; Hz
Mechanical quality factor
Q_MS: 8.42
Electrical quality factor
Q_ES: 0.42
Total quality factor
Q_TS: 0.40
Maximum linear excursion
x_max: 10.5; mm
Air volume displaced at x_max
V_D: 1220; cm³
Power handling
P: 900; W
Program power
P_max: 1800; W
Nominal impedance
Z: 8; Ω
DC resistance
R_E: 5.9; Ω
Inductance (1kHz)
L_E: 3.8; mH
VC Diameter: 127; mm
Winding height
H_VC: 25; mm
Winding material: Copper
Former material: Glass Fibre
Flux density
B: 0.96; T
Force factor
Bl: 21.0; N/A
Motor constant
Bl/√R_E: 8.65; N/√W
Air gap height
H_AG: 9; mm
Weight: 3.0; kg
Material: Ceramic
Effective diameter: 385; mm
Effective area
S_D: 1162; cm²
Moving mass
M_MS: 157.2; g
Moving mass (without air load)
M_MD: 128.5; g
Material: Paper
Stiffness
K_MS: 6.35; N/mm
Compliance
C_MS: 157; µm/N
Equivalent volume to the compliance
V_AS: 302; L
Mechanical resistance
R_MS: 3.75; N·s/m
Nominal diameter: 18; ″
: 457; mm
Overall diameter: 474; mm
Baffle cutout diameter: 414; mm
Overall depth: 182; mm
Flange thickness: 15; mm
Mounting depth: 167; mm
Volume occupied by the driver (estimated): 6.7; L
Net weight: 13.0; kg

Datasheet

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Precision Devices PD.185C001

Subwoofer

Thiele & Small parameters

Large signal parameters

Voice Coil

Magnet

Diaphragm

Suspensions

Dimensions

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