Oberton 12B401

Name: 12B401
Brand: Oberton

Subwoofer

12″ / 310 mm

Nominal diameter

47 Hz

Resonance

0.25

Q factor

96 dB

Sensitivity

± 6.75 mm

Linear excursion

800 W

Program Power

Sensitivity (1W, 1m, infinite baffle)
SPL_1W: 95.8; dB
Frequency response: 50 - 2500; Hz
Resonance frequency (free air)
f_S: 46.6; Hz
Mechanical quality factor
Q_MS: 13.93
Electrical quality factor
Q_ES: 0.25
Total quality factor
Q_TS: 0.25
Maximum linear excursion
x_max: 6.75; mm
Air volume displaced at x_max
V_D: 347; cm³
Power handling
P: 400; W
Program power
P_max: 800; W
Nominal impedance
Z: 8; Ω
DC resistance
R_E: 5.5; Ω
Inductance (1kHz)
L_E: 1.04; mH
VC Diameter: 77; mm
Winding height
H_VC: 18; mm
Winding material: Copper
Former material: Kapton
Flux density
B: 1.3; T
Force factor
Bl: 19.95; N/A
Motor constant
Bl/√R_E: 8.52; N/√W
Air gap height
H_AG: 9; mm
Material: Ferrite
Effective diameter: 256; mm
Effective area
S_D: 515; cm²
Moving mass
M_MS: 61.9; g
Moving mass (without air load)
M_MD: 53.5; g
Material: Paper
Stiffness
K_MS: 5.32; N/mm
Compliance
C_MS: 188; µm/N
Equivalent volume to the compliance
V_AS: 69.6; L
Mechanical resistance
R_MS: 1.3; N·s/m
Nominal diameter: 12; ″
: 310; mm
Overall diameter: 311; mm
Baffle cutout diameter: 280; mm
Overall depth: 145; mm
Volume occupied by the driver (estimated): 3.0; L
Net weight: 7.25; kg
Frame material: Die cast aluminium

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Oberton 12B401

Subwoofer

Thiele & Small parameters

Large signal parameters

Voice Coil

Magnet

Diaphragm

Suspensions

Dimensions

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