Eminence Kappa 12A

Specification:
 

• Nominal Basket Diameter 12", 304.8mm
• Nominal Impedance* 8 ohms
• Power Rating - Watts 450W, Music Program 900W
• Resonance 45Hz
• Usable Frequency Range 62Hz - 4.2kHz
• Sensitivity*** 99.3dB
• Magnet Weight 80 oz.
• Gap Height 0.37", 9.53mm
• Voice Coil Diameter 3", 76.2mm

Thiele & Small Parameters:
 

• Resonant Frequency (fs) 45Hz
• DC Resistance (Re) 5.41
• Coil Inductance (Le) 0.77mH
• Mechanical Q (Qms) 7.76
• Electromagnetic Q (Qes) 0.28
• Total Q (Qts) 0.27
• Compliance Equivalent Volume (Vas) 112.1 liters / 4 cu.ft.
• Peak Diaphragm Displacement Volume (Vd) 166cc
• Mechanical Compliance of Suspension (Cms) 0.3mm/N
• BL Product (BL) 15.2 T-M
• Diaphragm Mass Inc. Airload (MMs) 42 grams
• Efficiency Bandwidth Product (EBP) 161
• Maximum Linear Excursion (Xmax) 3.2mm
• Surface Area of Cone (Sd) 519.5 cm2
• Maximum Mechanical Limit (Xlim) 11.5mm

Mounting Information:
 

• Recommended Enclosure Volume
• Sealed N/a
• Vented 34-62 liters / 1.2-2.2 cu.ft.
• Driver Volume Displaced 155.5 cu.in. / 2.55 liters
• Overall Diameter 12.26", 311.4mm
• Baffle Hole Diameter 11", 279.5mm
• Front Sealing Gasket Fitted as standard
• Rear Sealing Gasket Fitted as standard
• Mounting Holes Diameter 0.25", 6.4mm
• Mounting Holes B.C.D. 11.71", 297.5mm
• Depth 5.63", 143mm
• Net Weight 14.9 lbs, 6.8 kg
• Shipping Weight 17.9 lbs, 8.2 kgs

Materials of Construction:
 

• Coil Construction Aluminium voice coil
• Coil Former Polyimide former
• Magnet Composition Ferrite magnet
• Core Details Vented core
• Basket Materials Pressed steel basket
• Cone Composition Paper Cone
• Cone Edge Composition Cloth cone edge
• Dust Cap Composition Solid composition paper dust cap
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