Haut-parleur Sica 18F4CP (4 ohm)
[18F4CP-4] Avis/Critiques Haut-parleur de grave de puissance 46 cm professionnel. Son saladier moulé en aluminium lui apporte une grande stabilité. Sa membrane papier produit un grave bien rond et percutant. Son impédance de 4 ohm permet de charger correctement l'amplificateur pour bénéficier d'une meilleur réserve.
GENERAL CHARACTERISTICS
Nominal Overall Diameter 462 mm
Nominal Voice Coil Diameter 100 mm
Magnet Weight 3300 g
Flux Density 1.31 T
Weight 12.80 Kg
ELECTRICAL CHARACTERISTICS
Nominal Impedance. 4 Ω
Musical Power 1400 W
Rated Power* 700 W
*rated power measured with 2 hours test with pink noise signal, 6 dB crest factor, loudspeaker mounted on enclosure
Sensitivity @ 1 W, 1 m 97.9 dB
THIELE-SMALL PARAMETERS
Voice Coil DC Resistance RE 6.38 Ω
Resonance Frequency fs 30.6 Hz
Mechanical Q Factor QMS 12.44
Electrical Q Factor QES 0.25
Total Q Factor QTS 0.25
Mechanical Moving Mass MMS 169.8 g
Mechanical Compliance CMS 160 μm/N
Force Factor B×l 28.66 Wb/m
Equivalent Acoustic Volume VAS 272.2.00 lt.
Maximum Linear Displacement XMAX +/-6.0 mm
Reference Efficiency η0 2.94 %
Diaphragm Area SD 1098.5 cm2
Losses Electrical Resistance RES 312.9 Ω
Voice Coil Inductance @ 1kHz LE 1.78 mH
CONSTRUCTIVE CHARACTERISTICS
Magnet Ferrite
Voice Coil Winding Copper
Voice Coil Former Fiber Glass
Cone Paper
Surround Treated Cloth
Dust Dome Solid Paper
Basket Pressed Aluminium Die-Cast
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