Eminence DELTA PRO 12-450-4

Name: DELTA PRO 12-450-4
Brand: Eminence

4Ω

8Ω

Woofer

12″ / 305 mm

Nominal diameter

45 Hz

Resonance

0.39

Q factor

96 dB

Sensitivity

± 5.2 mm

Linear excursion

900 W

Program Power

Sensitivity (1W, 1m, infinite baffle)
SPL_1W: 96.4; dB
Frequency response: 45 - 3800; Hz
Resonance frequency (free air)
f_S: 45.0; Hz
Mechanical quality factor
Q_MS: 7.97
Electrical quality factor
Q_ES: 0.41
Total quality factor
Q_TS: 0.39
Maximum linear excursion
x_max: 5.2; mm
Maximum excursion before damage
x_lim: 13.7; mm
Air volume displaced at x_max
V_D: 277; cm³
Power handling
P: 450; W
Program power
P_max: 900; W
Nominal impedance
Z: 4; Ω
DC resistance
R_E: 3.7; Ω
Inductance (1kHz)
L_E: 0.45; mH
VC Diameter: 64; mm
Winding material: Aluminum
Former material: Polyimide
Force factor
Bl: 9.51; N/A
Motor constant
Bl/√R_E: 4.98; N/√W
Air gap height
H_AG: 7.9; mm
Weight: 1.588; kg
Material: Ferrite
Effective diameter: 260; mm
Effective area
S_D: 532; cm²
Moving mass
M_MS: 36; g
Moving mass (without air load)
M_MD: 27.2; g
Material: Paper
Stiffness
K_MS: 2.86; N/mm
Compliance
C_MS: 350; µm/N
Equivalent volume to the compliance
V_AS: 138; L
Mechanical resistance
R_MS: 1.28; N·s/m
Surround material: Cloth
Nominal diameter: 12; ″
: 305; mm
Overall diameter: 315; mm
Baffle cutout diameter: 281; mm
Overall depth: 140; mm
Volume occupied by the driver: 2.25; L
Net weight: 5.31; kg
Frame material: Die-cast aluminum

Eminence DELTA PRO 12-450-4 SPL & Impedance

Datasheet

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Eminence DELTA PRO 12-450-4

Woofer

Thiele & Small parameters

Large signal parameters

Voice Coil

Magnet

Diaphragm

Suspensions

Dimensions

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