Eminence KAPPA-12A

Name: KAPPA-12A
Brand: Eminence

Woofer

12″ / 305 mm

Nominal diameter

45 Hz

Resonance

0.27

Q factor

97 dB

Sensitivity

± 3.2 mm

Linear excursion

900 W

Program Power

Amazon.com
: $$$
Parts Express
: $$$
Sensitivity (1W, 1m, infinite baffle)
SPL_1W: 96.9; dB
Frequency response: 62 - 4200; Hz
Resonance frequency (free air)
f_S: 45.0; Hz
Mechanical quality factor
Q_MS: 7.76
Electrical quality factor
Q_ES: 0.28
Total quality factor
Q_TS: 0.27
Maximum linear excursion
x_max: 3.2; mm
Maximum excursion before damage
x_lim: 11.5; mm
Air volume displaced at x_max
V_D: 166; cm³
Power handling
P: 450; W
Program power
P_max: 900; W
Nominal impedance
Z: 8; Ω
DC resistance
R_E: 5.4; Ω
Inductance (1kHz)
L_E: 0.77; mH
VC Diameter: 76; mm
Winding material: Aluminum
Former material: Polyimide
Force factor
Bl: 15.2; N/A
Motor constant
Bl/√R_E: 6.53; N/√W
Air gap height
H_AG: 9.5; mm
Weight: 2.268; kg
Material: Ferrite
Effective diameter: 257; mm
Effective area
S_D: 520; cm²
Moving mass
M_MS: 42; g
Moving mass (without air load)
M_MD: 33.5; g
Material: Paper
Stiffness
K_MS: 3.33; N/mm
Compliance
C_MS: 300; µm/N
Equivalent volume to the compliance
V_AS: 112; L
Mechanical resistance
R_MS: 1.53; N·s/m
Surround material: Cloth
Nominal diameter: 12; ″
: 305; mm
Overall diameter: 311; mm
Baffle cutout diameter: 279; mm
Overall depth: 143; mm
Volume occupied by the driver: 2.55; L
Net weight: 6.76; kg
Frame material: Pressed steel

Datasheet

Export this driver to a simulation software:

Eminence KAPPA-12A

Woofer

Available on (affiliate links)

Specifications

Thiele & Small parameters

Large signal parameters

Voice Coil

Magnet

Diaphragm

Suspensions

Dimensions

Export this driver to a simulation software:

Similar woofers to Eminence KAPPA-12A