Eminence JS-1250

Name: JS-1250
Brand: Eminence

Guitar Speaker

12″ / 309 mm

Nominal diameter

92 Hz

Resonance

0.61

Q factor

100 dB

Sensitivity

± 0.79 mm

Linear excursion

100 W

Program Power

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Sensitivity (1W, 1m, infinite baffle)
SPL_1W: 100.2; dB
Frequency response: 80 - 5200; Hz
Resonance frequency (free air)
f_S: 92.0; Hz
Mechanical quality factor
Q_MS: 15.69
Electrical quality factor
Q_ES: 0.63
Total quality factor
Q_TS: 0.61
Maximum linear excursion
x_max: 0.79; mm
Air volume displaced at x_max
V_D: 41; cm³
Power handling
P: 50; W
Program power
P_max: 100; W
Nominal impedance
Z: 8; Ω
DC resistance
R_E: 6.4; Ω
Inductance (1kHz)
L_E: 0.5; mH
VC Diameter: 44; mm
Winding material: Copper
Former material: Nomex
Force factor
Bl: 12.91; N/A
Motor constant
Bl/√R_E: 5.1; N/√W
Air gap height
H_AG: 8; mm
Weight: 1.077; kg
Material: Ferrite
Effective diameter: 257; mm
Effective area
S_D: 520; cm²
Moving mass
M_MS: 28; g
Moving mass (without air load)
M_MD: 19.6; g
Stiffness
K_MS: 9.09; N/mm
Compliance
C_MS: 110; µm/N
Equivalent volume to the compliance
V_AS: 41.2; L
Mechanical resistance
R_MS: 1.03; N·s/m
Surround material: Full molded paper
Nominal diameter: 12; ″
: 309; mm
Overall diameter: 309; mm
Baffle cutout diameter: 283; mm
Overall depth: 133; mm
Volume occupied by the driver: 2.0; L
Net weight: 3.63; kg
Frame material: Pressed steel

Datasheet

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Eminence JS-1250

Guitar Speaker

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Specifications

Thiele & Small parameters

Large signal parameters

Voice Coil

Magnet

Diaphragm

Suspensions

Dimensions

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