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Eminence

SIGMA PRO 18A-2

Šifra Proizvoda: 6236

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229 €

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SIGMA PRO 18A-2 SPECIFICATION Nominal Basket Diameter 18\\\\\\\", 457.2mm Nominal Impedance* 8 ohms Power Rating Watts 650W Music Program 1300W Resonance 28Hz Usable Frequency Range 41Hz-2.4kHz Sensitivity*** 99 Magnet Weight 120 oz. Gap Height 0.375\\\\\\\", 9.53mm Voice Coil Diameter 3\\\\\\\", 76.2mm THIELE & SMALL PARAMETERS Resonant Frequency (fs) 28Hz Download PDF Spec Sheet     Download PDF Cabinet Design   DC Resistance (Re) 6.29 Coil Inductance (Le) 1.90mH Mechanical Q (Qms) 8.28 Electromagnetic Q...

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SIGMA PRO 18A-2    
SPECIFICATION    
Nominal Basket Diameter 18", 457.2mm
Nominal Impedance* 8 ohms
Power Rating  
Watts 650W
Music Program 1300W
Resonance 28Hz
Usable Frequency Range 41Hz-2.4kHz
Sensitivity*** 99
Magnet Weight 120 oz.
Gap Height 0.375", 9.53mm
Voice Coil Diameter 3", 76.2mm
THIELE & SMALL PARAMETERS  
Resonant Frequency (fs) 28Hz
 

 

 

 

 

DC Resistance (Re) 6.29
Coil Inductance (Le) 1.90mH
Mechanical Q (Qms) 8.28
Electromagnetic Q (Qes) 0.30
Total Q (Qts) 0.29
Compliance Equivalent Volume (Vas) 441.2 liters / 15.6 cu.ft.
Peak Diaphragm Displacement Volume (Vd) 695cc
Mechanical Compliance of Suspension (Cms) 0.24mm/N
BL Product (BL) 22.1 T-M
Diaphram Mass inc. Airload (Mms) 130 grams
Efficiency Bandwidth Product (EBP) 93
Maximum Linear Excursion (Xmax) 6.1mm
Surface Area of Cone (Sd) 1140.0 cm2  
Maximum Mechanical Limit (Xlim) 18.0mm  
     
MOUNTING INFORMATION    
Recommended Enclosure    
Sealed N/A  
Vented 93-212 liters/3.3-7.5 cu.ft.  
Overall Diameter 18", 457.2mm  
Baffle Hole Diameter 16.56", 420.5mm  
Front Sealing Gasket Fitted as standard  
Rear Sealing Gasket Fitted as standard  
Mounting Holes Diameter 0.28", 7.1mm  
Mounting Holes B.C. D. 17.25", 438.2mm  
Depth 8.15", 207mm  
Net Weight 24.5 lbs., 11.1 kg  
Shipping Weight 28.1 lbs., 12.8 kg  
     
MATERIALS OF CONSTRUCTION    
Coil Construction Copper voice coil  
Coil Former Polyimide former  
Magnet Composition Ferrite magnet  
Core Details Vented and extended core  
Basket Materials Die-cast aluminum basket  
Cone Composition Paper Cone  
Cone Edge Composition Cloth cone edge  
Dustcap Composition Solid composition paper dust cap

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