Eminence BETA-12LTA

Name: BETA-12LTA
Brand: Eminence

Woofer

12″ / 305 mm

Nominal diameter

45 Hz

Resonance

0.51

Q factor

95 dB

Sensitivity

± 3.2 mm

Linear excursion

450 W

Program Power

Sensitivity (1W, 1m, infinite baffle)
SPL_1W: 95.3; dB
Frequency response: 48 - 8000; Hz
Resonance frequency (free air)
f_S: 45.0; Hz
Mechanical quality factor
Q_MS: 6.44
Electrical quality factor
Q_ES: 0.55
Total quality factor
Q_TS: 0.51
Maximum linear excursion
x_max: 3.2; mm
Maximum excursion before damage
x_lim: 8.0; mm
Air volume displaced at x_max
V_D: 170; cm³
Power handling
P: 225; W
Program power
P_max: 450; W
Nominal impedance
Z: 8; Ω
DC resistance
R_E: 7.4; Ω
Inductance (1kHz)
L_E: 0.83; mH
VC Diameter: 51; mm
Winding material: Copper
Former material: Polyimide
Force factor
Bl: 11.7; N/A
Motor constant
Bl/√R_E: 4.31; N/√W
Air gap height
H_AG: 7.9; mm
Weight: 1.077; kg
Material: Ferrite
Effective diameter: 260; mm
Effective area
S_D: 532; cm²
Moving mass
M_MS: 36; g
Moving mass (without air load)
M_MD: 27.4; g
Material: Paper
Stiffness
K_MS: 2.94; N/mm
Compliance
C_MS: 340; µm/N
Equivalent volume to the compliance
V_AS: 136; L
Mechanical resistance
R_MS: 1.58; N·s/m
Surround material: Cloth
Nominal diameter: 12; ″
: 305; mm
Overall diameter: 306; mm
Baffle cutout diameter: 281; mm
Overall depth: 114; mm
Volume occupied by the driver: 2.0; L
Net weight: 3.67; kg
Frame material: Pressed steel

Datasheet

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Eminence BETA-12LTA

Woofer

Thiele & Small parameters

Large signal parameters

Voice Coil

Magnet

Diaphragm

Suspensions

Dimensions

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