Tweeter à dôme Sica LP90.28/N92TW (8 ohm)
[LP90.28/N92-8] Avis/Critiques Tweeter à dôme tissu 28 mm, pour la construction d'enceinte 2 voies avec un grave/médium de 17/20 cm, le remplacement de tweeter standard ou pour la fabrication d'enceinte d'appoint pour DJ's. Très bonne montée en rendement jusqu'à 20 kHz. Utilisable à partir de 1.2 kHz.
GENERAL CHARACTERISTICS
Nominal Overall Diameter 90 mm
Nominal Voice Coil Diameter 28 mm
Magnet Weight 92 g
Flux Density 1.80 T
Weight 0.41 Kg
ELECTRICAL CHARACTERISTICS
Nominal Impedance. 8 Ω
Musical Power 80 W
Rated Power* 40 W
*rated power measured with 2 hours test with continuous pink noise signal, 6 dB crest factor, HP filter 2.0kHz-12dB/Oct
Sensitivity @ 1 W, 1 m 94.4 dB
THIELE-SMALL PARAMETERS
Voice Coil DC Resistance RE 6.00 Ω
Resonance Frequency fs 600 Hz
Mechanical Q Factor QMS 2.61
Electrical Q Factor QES 0.47
Total Q Factor QTS 0.39
Mechanical Moving Mass MMS 0.63 g
Force Factor B×l 5.37 Wb/m
CONSTRUCTIVE CHARACTERISTICS
Magnet Neodymium
Voice Coil Winding Aluminium Flat Wire
Voice Coil Former Aluminium
Voice Coil Winding Height 2.7mm
Dome Material Treated Silk
Flange Aluminium
Air Gap Height 3.0mm
Ferrofluid in Air Gap No
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