Eminence BETA-12CX

Name: BETA-12CX
Brand: Eminence

Coaxial

12″ / 305 mm

Nominal diameter

47 Hz

Resonance

0.48

Q factor

95 dB

Sensitivity

± 3.5 mm

Linear excursion

500 W

Program Power

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Sensitivity (1W, 1m, infinite baffle)
SPL_1W: 95.4; dB
Frequency response: 57 - 4600; Hz
Resonance frequency (free air)
f_S: 47.0; Hz
Mechanical quality factor
Q_MS: 5.64
Electrical quality factor
Q_ES: 0.52
Total quality factor
Q_TS: 0.48
Maximum linear excursion
x_max: 3.5; mm
Maximum excursion before damage
x_lim: 10.4; mm
Air volume displaced at x_max
V_D: 189; cm³
Power handling
P: 250; W
Program power
P_max: 500; W
Nominal impedance
Z: 8; Ω
DC resistance
R_E: 5.4; Ω
Inductance (1kHz)
L_E: 0.64; mH
VC Diameter: 51; mm
Winding material: Copper
Former material: Kapton
Force factor
Bl: 10.79; N/A
Motor constant
Bl/√R_E: 4.63; N/√W
Air gap height
H_AG: 7.9; mm
Weight: 1.077; kg
Material: Ferrite
Effective diameter: 262; mm
Effective area
S_D: 539; cm²
Moving mass
M_MS: 38; g
Moving mass (without air load)
M_MD: 29.3; g
Material: Paper
Stiffness
K_MS: 3.33; N/mm
Compliance
C_MS: 300; µm/N
Equivalent volume to the compliance
V_AS: 121; L
Mechanical resistance
R_MS: 1.99; 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: 3.54; kg
Frame material: Pressed steel

Datasheet

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Eminence BETA-12CX

Coaxial

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Specifications

Thiele & Small parameters

Large signal parameters

Voice Coil

Magnet

Diaphragm

Suspensions

Dimensions

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