Precision Devices PD.1225C001

Name: PD.1225C001
Brand: Precision Devices

Mid-range

12″ / 305 mm

Nominal diameter

39 Hz

Resonance

0.19

Q factor

97 dB

Sensitivity

± 5.6 mm

Linear excursion

600 W

Program Power

Sensitivity (1W, 1m, infinite baffle)
SPL_1W: 97.2; dB
Frequency response: 45 - 5000; Hz
Resonance frequency (free air)
f_S: 39.0; Hz
Mechanical quality factor
Q_MS: 5.90
Electrical quality factor
Q_ES: 0.20
Total quality factor
Q_TS: 0.19
Maximum linear excursion
x_max: 5.6; mm
Air volume displaced at x_max
V_D: 308; cm³
Power handling
P: 300; W
Program power
P_max: 600; W
Nominal impedance
Z: 8; Ω
DC resistance
R_E: 5.2; Ω
Inductance (1kHz)
L_E: 1.33; mH
VC Diameter: 64; mm
Winding height
H_VC: 15.8; mm
Winding material: Copper Clad Aluminium
Former material: Glass Fibre
Flux density
B: 1.1; T
Force factor
Bl: 17.54; N/A
Motor constant
Bl/√R_E: 7.69; N/√W
Air gap height
H_AG: 9; mm
Weight: 2.45; kg
Material: Ferrite Y30
Effective diameter: 265; mm
Effective area
S_D: 550; cm²
Moving mass
M_MS: 48.3; g
Moving mass (without air load)
M_MD: 38.8; g
Stiffness
K_MS: 2.75; N/mm
Compliance
C_MS: 363; µm/N
Equivalent volume to the compliance
V_AS: 156; L
Mechanical resistance
R_MS: 2.01; N·s/m
Nominal diameter: 12; ″
: 305; mm
Overall diameter: 331; mm
Baffle cutout diameter: 279; mm
Overall depth: 113; mm
Flange thickness: 10; mm
Mounting depth: 103; mm
Volume occupied by the driver (estimated): 3.0; L
Net weight: 8.45; kg

Datasheet

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Precision Devices PD.1225C001

Mid-range

Thiele & Small parameters

Large signal parameters

Voice Coil

Magnet

Diaphragm

Suspensions

Dimensions

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