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- Fabricant : Eminence
- Modèle : Impero 18A
- Série : Professional
- Catégorie : Haut-parleurs à cône 18" (46 cm)
- Poids du colis : 13.5 kg
- Fiche créée le : 17/02/2016
Haut-parleur 18 pouces idéal pour enceinte 3 voies, baffle basse et petit subwoofer. Existe en version 4 ohms : Impero 18C
| Specification | |
| Nominal Basket Diameter | 18", 457 mm |
| Nominal Impedance* | 8 Ω |
| Power Rating* | |
| Program Power | 2400 W |
| Watts | 1200 W |
| Resonance | 33 Hz |
| Usable Frequency Range | 39 Hz - 0.8 kHz |
| Sensitivity* | 95.9 dB |
| Magnet Weight | 109 oz. |
| Gap Height | 0.5", 12.7 mm |
| Voice Coil Diameter | 4", 102 mm |
| Thiele & Small Parameters | |
| Resonant Frequency (fs) | 33 Hz |
| DC Resistance (Re) | 5.41 Ω |
| Coil Inductance (Le) | 1.47m H |
| Mechanical Q (Qms) | 14.02 |
| Electromagnetic Q (Qes) | 0.44 |
| Total Q (Qts) | 0.43 |
| Compliance Equivalent Volume (Vas) | 317.02 liters / 11.2 cu.ft. |
| Peak Diaphragm Displacement Volume (Vd) | 927.2 cc |
| Mechanical Compliance of Suspension (Cms) | 0.17 mm/N |
| BL Product (BL) | 18.9 T-M |
| Diaphragm Mass Inc. Airload (MMs) | 140 grams |
| Efficiency Bandwidth Product (EBP) | 75 |
| Maximum Linear Excursion (Xmax) | 8 mm |
| Surface Area of Cone (Sd) | 1159 cm2 |
| Maximum Mechanical Limit (Xlim) | 20.2 mm |
| Mounting Information | |
| Recommended Enclosure Volume | |
| Sealed | N/a |
| Vented | 113.27-277.51 liters / 4-9.8 cu.ft. |
| Driver Volume Displaced | 0.237 cu.ft. / 6.7 liters |
| Overall Diameter | 18", 457.2 mm |
| Baffle Hole Diameter | 16.56", 420.6 mm |
| Front Sealing Gasket | Yes |
| Rear Sealing Gasket | Yes |
| Mounting Holes Diameter | 0.28", 7.1mm |
| Mounting Holes B.C.D. | 17.25", 438.2mm |
| Depth | 8.31", 211.1 mm |
| Net Weight | 27.3 lbs, 12.38 kg |
| Shipping Weight | 30.8 lbs, 13.97 kgs |
| Materials of Construction | |
| Coil Construction | Copper voice coil |
| Coil Former | Fiberglass former |
| Magnet Composition | Ferrite magnet |
| Core Details | Bumped Vented Extended core |
| Basket Materials | Die-cast aluminum basket |
| Cone Composition | Water resistant paper cone |
| Cone Edge Composition | Treated cloth cone edge |
| Dust Cap Composition | Water resistant treated paper dust cap |
Source : http://www.eminence.com/speakers/speaker-detail/?model=Impero_18A
Distribué par Adam Hall
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Autres haut-parleurs à cône 18" (46 cm) Eminence
Autres catégories dans Haut-parleurs à cône
Autres dénominations : impero18a, impero 18 a, impero18 a