KAPPA PRO-12A




SPECIFICATION




Nominal Basket Diameter
12", 304.8mm


Nominal Impedance*
8 ohms


Power Rating



Watts
500W


Music Program
1000W


Resonance
37Hz


Usable Frequency Range
57Hz-2.8kHz


Sensitivity***
97.1


Magnet Weight
80 oz.


Gap Height
0.375", 9.53mm


Voice Coil Diameter
3", 76.2mm






THIELE & SMALL PARAMETERS



Resonant Frequency (fs)
37Hz





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Download PDF Cabinet Design



 



DC Resistance (Re)
5.46


Coil Inductance (Le)
1.22mH


Mechanical Q (Qms)
6.93


Electromagnetic Q (Qes)
0.25


Total Q (Qts)
0.24


Compliance Equivalent Volume (Vas)
121.0 liters / 4.3 cu.ft.


Peak Diaphragm Displacement Volume (Vd)
249cc


Mechanical Compliance of Suspension (Cms)
0.32mm/N


BL Product (BL)
17.3 T-M


Diaphram Mass inc. Airload (Mms)
59 grams


Efficiency Bandwidth Product (EBP)
148


Maximum Linear Excursion (Xmax)
4.8mm


Surface Area of Cone (Sd)
519.5 cm2



Maximum Mechanical Limit (Xlim)
14.8mm








MOUNTING INFORMATION




Recommended Enclosure




Sealed
N/A



Vented
17-34 liters/0.6-1.2 cu.ft.



Overall Diameter
12.38", 314.5mm



Baffle Hole Diameter
11.07", 281.1mm



Front Sealing Gasket
Fitted as standard



Rear Sealing Gasket
Fitted as standard



Mounting Holes Diameter
0.26", 6.5mm



Mounting Holes B.C. D.
11.57", 293.8mm



Depth
6.22", 158mm



Net Weight
16.6 lbs., 7.5 kg



Shipping Weight
18.4 lbs., 8.4 kg








MATERIALS OF CONSTRUCTION




Coil Construction
Copper voice coil



Coil Former
Polyimide former



Magnet Composition
Ferrite magnet



Core Details
Vented core



Basket Materials
Die-cast aluminum basket



Cone Composition
Paper Cone



Cone Edge Composition
Cloth cone edge



Dustcap Composition
Solid composition paper dust cap