Description
KAPPA PRO-12A
High efficiency pro audio driver for vented mid-bass, and vented bass enclosures.
SPECIFICATION | |
Nominal Basket Diameter | 12", 305 mm |
Nominal Impedance* | 8 Ω |
Power Rating* | |
Program Power | 1000 W |
Watts | 500 W |
Resonance | 37 Hz |
Usable Frequency Range | 57 Hz - 2.8 kHz |
Sensitivity* | 97.1 dB |
Magnet Weight | 80 oz. |
Gap Height | 0.375", 9.5 mm |
Voice Coil Diameter | 3", 76 mm |
THIELE & SMALL PARAMETERS | |
Resonant Frequency (fs) | 37 Hz |
DC Resistance (Re) | 5.46 Ω |
Coil Inductance (Le) | 1.22m H |
Mechanical Q (Qms) | 6.93 |
Electromagnetic Q (Qes) | 0.25 |
Total Q (Qts) | 0.24 |
Compliance Equivalent Volume (Vas) | 121 liters / 4.27 cu.ft. |
Peak Diaphragm Displacement Volume (Vd) | 249 cc |
Mechanical Compliance of Suspension (Cms) | 0.32 mm/N |
BL Product (BL) | 17.3 T-M |
Diaphragm Mass Inc. Airload (MMs) | 59 grams |
Efficiency Bandwidth Product (EBP) | 148 |
Maximum Linear Excursion (Xmax) | 4.8 mm |
Surface Area of Cone (Sd) | 519.5 cm2 |
Maximum Mechanical Limit (Xlim) | 14.8 mm |
MOUNTING INFORMATION | |
Recommended Enclosure Volume | |
Sealed | N/a |
Vented | 17-34 liters / 0.6-1.2 cu.ft. |
Driver Volume Displaced | 0.09 cu.ft. / 2.55 liters |
Overall Diameter | 12.38", 314.5 mm |
Baffle Hole Diameter | 11.07", 281.2 mm |
Front Sealing Gasket | Yes |
Rear Sealing Gasket | Yes |
Mounting Holes Diameter | 0.27", 6.9mm |
Mounting Holes B.C.D. | 11.69", 296.9mm |
Depth | 6.22", 158 mm |
Net Weight | 16.6 lbs, 7.53 kg |
Shipping Weight | 18.4 lbs, 8.35 kgs |
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 |
Dust Cap Composition | Solid composition paper dust cap |
Multiple units exceed published ratings evaluated under EIA 426A specification while tested in a free-air, non-temperature-controlled environment. Multiple compression drivers exceeded published ratings evaluated under EIA-426A or AES specification while mounted on Eminence’s H290, H290S, or H2EA horn in a non-temperature-controlled environment.
The average output across the usable frequency range when applying 1W/1m into the nominal impedance. i.e: 2.83V/8Ω, 4V/16Ω. Eminence response curves are measured under the following conditions: All speakers are tested at 1W/1m using a variety of test set-ups for the appropriate impedance | LMS using 0.25" supplied microphone (software calibrated) mounted 1m from wall/baffle | 2 ft. x 2 ft. baffle is built into the wall with the speaker mounted flush against a steel ring for minimum diffraction | Yamaha P3500S amplifier | 2700 cu. ft. chamber with fiberglass on all six surfaces (three with custom-made wedges). Compression drivers were tested using a 2ft x 2ft baffle built into the wall with horn front mounted.
BETA 8CX, 10CX and 12CX are coaxial speakers with tweeter sold separately. The data for these coaxial woofers was calculated with the ASD:1001 driver screwed into the woofer, but not active.
Prices, specifications and product cosmetics are subject to change without notice.