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EMINENCE SIGMA PRO 18A-2

Šifra: 6236
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27.480,00 rsd.
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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 (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


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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