Eminence ALPHA-15A

Name: ALPHA-15A
Brand: Eminence

Bass Guitar Speaker

15″ / 381 mm

Nominal diameter

41 Hz

Resonance

1.26

Q factor

94 dB

Sensitivity

± 3.8 mm

Linear excursion

400 W

Program Power

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Sensitivity (1W, 1m, infinite baffle)
SPL_1W: 94.3; dB
Frequency response: 46 - 3500; Hz
Resonance frequency (free air)
f_S: 41.0; Hz
Mechanical quality factor
Q_MS: 7.23
Electrical quality factor
Q_ES: 1.53
Total quality factor
Q_TS: 1.26
Maximum linear excursion
x_max: 3.8; mm
Maximum excursion before damage
x_lim: 8.4; mm
Air volume displaced at x_max
V_D: 325; cm³
Power handling
P: 200; W
Program power
P_max: 400; W
Nominal impedance
Z: 8; Ω
DC resistance
R_E: 5.9; Ω
Inductance (1kHz)
L_E: 0.84; mH
VC Diameter: 38; mm
Winding material: Copper
Former material: Polyimide
Force factor
Bl: 7.7; N/A
Motor constant
Bl/√R_E: 3.18; N/√W
Air gap height
H_AG: 6.4; mm
Weight: 0.709; kg
Material: Ferrite
Effective diameter: 330; mm
Effective area
S_D: 856; cm²
Moving mass
M_MS: 59; g
Moving mass (without air load)
M_MD: 41.7; g
Material: Paper
Stiffness
K_MS: 4.0; N/mm
Compliance
C_MS: 250; µm/N
Equivalent volume to the compliance
V_AS: 260; L
Mechanical resistance
R_MS: 2.1; N·s/m
Surround material: Cloth
Nominal diameter: 15; ″
: 381; mm
Overall diameter: 385; mm
Baffle cutout diameter: 352; mm
Overall depth: 148; mm
Volume occupied by the driver: 3.21; L
Net weight: 3.04; kg
Frame material: Pressed steel

Datasheet

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Eminence ALPHA-15A

Bass Guitar Speaker

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Specifications

Thiele & Small parameters

Large signal parameters

Voice Coil

Magnet

Diaphragm

Suspensions

Dimensions

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