D.A.S. Audio 12B

Name: 12B
Brand: D.A.S. Audio

Mid Bass

12″ / 305 mm

Nominal diameter

46 Hz

Resonance

0.19

Q factor

97 dB

Sensitivity

± 4 mm

Linear excursion

1000 W

Program Power

Sensitivity (1W, 1m, infinite baffle)
SPL_1W: 97.0; dB
Frequency response: 50 - 5000; Hz
Resonance frequency (free air)
f_S: 46.0; Hz
Mechanical quality factor
Q_MS: 8.72
Electrical quality factor
Q_ES: 0.19
Total quality factor
Q_TS: 0.19
Maximum linear excursion
x_max: 4.0; mm
Maximum excursion before damage
x_lim: 10.0; mm
Air volume displaced at x_max
V_D: 216; cm³
Power handling
P: 500; W
Program power
P_max: 1000; W
Nominal impedance
Z: 8; Ω
DC resistance
R_E: 5.7; Ω
Inductance (1kHz, estimated)
L_E: 1.0; mH
VC Diameter: 102; mm
Winding height
H_VC: 12; mm
Winding material: Aluminium EFW
Former material: Glass Fibre Reinforced Polymer
Force factor
Bl: 23.5; N/A
Motor constant
Bl/√R_E: 9.84; N/√W
Air gap height
H_AG: 8; mm
Material: Ferrite
Effective diameter: 262; mm
Effective area
S_D: 540; cm²
Moving mass
M_MS: 65; g
Moving mass (without air load)
M_MD: 56.3; g
Stiffness
K_MS: 5.32; N/mm
Compliance
C_MS: 188; µm/N
Equivalent volume to the compliance
V_AS: 77.8; L
Mechanical resistance
R_MS: 2.15; N·s/m
Surround material: Polycotton
Spider material: Polycotton
Nominal diameter: 12; ″
: 305; mm
Baffle cutout diameter: 289; mm
Volume occupied by the driver (estimated): 2.4; L
Frame material: Injected Aluminum

Datasheet

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D.A.S. Audio 12B

Mid Bass

Thiele & Small parameters

Large signal parameters

Voice Coil

Magnet

Diaphragm

Suspensions

Dimensions

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