Eminence KAPPA-12A: 12″ Woofer
Recommended for professional audio as a mid/hi or full range in a vented enclosure.
Click Here to Download PDF Spec Sheet
Click Here to Download PDF Cabinet Design
| SPECIFICATION | |
| Nominal Basket Diameter | 12″, 305 mm |
| Nominal Impedance* | 8 Ω |
| Power Rating* | |
| Program Power | 900 W |
| Watts | 450 W |
| Resonance | 45 Hz |
| Usable Frequency Range | 62 Hz – 4.2 kHz |
| Sensitivity* | 99.3 dB |
| Magnet Weight | 80 oz. |
| Gap Height | 0.375″, 9.5 mm |
| Voice Coil Diameter | 3″, 76 mm |
| THIELE & SMALL PARAMETERS | |
| Resonant Frequency (fs) | 45 Hz |
| DC Resistance (Re) | 5.41 Ω |
| Coil Inductance (Le) | 0.77m H |
| Mechanical Q (Qms) | 7.76 |
| Electromagnetic Q (Qes) | 0.28 |
| Total Q (Qts) | 0.27 |
| Compliance Equivalent Volume (Vas) | 112.1 liters / 3.96 cu.ft. |
| Peak Diaphragm Displacement Volume (Vd) | 166 cc |
| Mechanical Compliance of Suspension (Cms) | 0.3 mm/N |
| BL Product (BL) | 15.2 T-M |
| Diaphragm Mass Inc. Airload (MMs) | 42 grams |
| Efficiency Bandwidth Product (EBP) | 161 |
| Maximum Linear Excursion (Xmax) | 3.2 mm |
| Surface Area of Cone (Sd) | 519.5 cm2 |
| Maximum Mechanical Limit (Xlim) | 11.5 mm |
| MOUNTING INFORMATION | |
| Recommended Enclosure Volume | |
| Sealed | N/a |
| Vented | 34-62 liters / 1.2-2.2 cu.ft. |
| Driver Volume Displaced | 0.09 cu.ft. / 2.55 liters |
| Overall Diameter | 12.26″, 311.4 mm |
| Baffle Hole Diameter | 11″, 279.4 mm |
| Front Sealing Gasket | Yes |
| Rear Sealing Gasket | Yes |
| Mounting Holes Diameter | 0.25″, 6.4mm |
| Mounting Holes B.C.D. | 11.71″, 297.4mm |
| Depth | 5.63″, 143 mm |
| Net Weight | 14.9 lbs, 6.76 kg |
| Shipping Weight | 17.9 lbs, 8.12 kgs |
| MATERIALS OF CONSTRUCTION | |
| Coil Construction | Aluminum 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 |
