Eminence ALPHA 5-8

Name: ALPHA 5-8
Brand: Eminence

Mid Bass

5″ / 127 mm

Nominal diameter

87 Hz

Resonance

0.54

Q factor

90 dB

Sensitivity

± 5.92 mm

Linear excursion

250 W

Program Power

Parts Express
: $$
Sensitivity (1W, 1m, infinite baffle)
SPL_1W: 90.2; dB
Frequency response: 87 - 3500; Hz
Resonance frequency (free air)
f_S: 87.0; Hz
Mechanical quality factor
Q_MS: 11.81
Electrical quality factor
Q_ES: 0.56
Total quality factor
Q_TS: 0.54
Maximum linear excursion
x_max: 5.92; mm
Maximum excursion before damage
x_lim: 6.4; mm
Air volume displaced at x_max
V_D: 61; cm³
Power handling
P: 125; W
Program power
P_max: 250; W
Nominal impedance
Z: 8; Ω
DC resistance
R_E: 5.0; Ω
Inductance (1kHz)
L_E: 0.29; mH
VC Diameter: 38; mm
Winding material: Aluminum
Former material: Polyimide
Force factor
Bl: 6.22; N/A
Motor constant
Bl/√R_E: 2.78; N/√W
Air gap height
H_AG: 5.8; mm
Weight: 0.567; kg
Material: Ferrite
Effective diameter: 114; mm
Effective area
S_D: 103; cm²
Moving mass
M_MS: 8; g
Moving mass (without air load)
M_MD: 7.2; g
Material: Water resistant pulp
Stiffness
K_MS: 2.38; N/mm
Compliance
C_MS: 420; µm/N
Equivalent volume to the compliance
V_AS: 6.14; L
Mechanical resistance
R_MS: 0.37; N·s/m
Surround material: Cloth
Nominal diameter: 5; ″
: 127; mm
Overall diameter: 149; mm
Baffle cutout diameter: 122; mm
Overall depth: 74; mm
Volume occupied by the driver: 0.51; L
Net weight: 1.41; kg
Frame material: Pressed steel

Datasheet

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Eminence ALPHA 5-8

Mid Bass

Available on (affiliate link)

Specifications

Thiele & Small parameters

Large signal parameters

Voice Coil

Magnet

Diaphragm

Suspensions

Dimensions

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