This speaker has been reconed in our recone center.
KAPPA PRO-12A
Professional Series
Recommended for professional audio in a vented mid-bass, and vented bass enclosure incorporating
a high-pass filter.
Please inquire about alternative impedances.
Multiple units exceed published rating evaluated under EIA 426A noise source and test standard while in a free-air, nontemperature-controlled environment.
The average output across the usable frequency range when applying 1W/1m into the nominal impedance. Ie: 2.83 V/8 ohms, 4 V/16 ohms.
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 | Hafler P1500 Trans-Nova amplifier | 2700 cu.ft. chamber with
fiberglass on all six surfaces (three with custom-made wedges)
*
**
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Nominal Basket Diameter
Nominal Impedance*
Power Rating**
Watts
Music Program
Resonance
Usable Frequency Range***
Sensitivity
Magnet Weight
Gap Height
Voice Coil Diameter
12", 304.8mm
8 ohms
500W
1000W
37Hz
57Hz-2.8kHz
97.1
80 oz
0.375", 9.53mm
3", 76.2mm
Specification
Resonant Frequency (fs)
DC Resistance (Re)
Coil Inductance (Le)
Mechanical Q (Qms)
Electromagnetic Q (Qes)
Total Q (Qts)
Compliance Equivalent Volume (Vas)
Peak Diaphragm Displacement Volume (Vd)
Mechanical Compliance of Suspension (Cms)
BL Product (BL)
Diaphragm Mass inc. Airload (Mms)
Efficiency Bandwidth Product (EBP)
Maximum Linear Excursion (Xmax)
Surface Area of Cone (Sd)
Maximum Mechanical Limit (Xlim)
37Hz
5.46
1.22mH
6.93
0.25
0.24
121.0 ltr/4.3 cu. ft.
249cc
0.32mm/N
17.3 T-M
59 grams
148
4.8mm
519.5cm
214.8mm
Thiele & Small Parameters
Recommended Enclosure Volume
Sealed
Vented
Overall Diameter
Baffle Hole Diameter
Front Sealing Gasket
Rear Sealing Gasket
Mounting Holes Diameter
Mounting Holes B.C.D.
Depth
Net Weight
Shipping Weight
N/A
17-34 ltr/0.6-1.2 cu. ft.
12.38", 314.5mm
11.07", 281.1mm
Fitted as Standard
Fitted as Standard
0.26", 6.5mm
11.57", 293.8mm
6.22", 158mm
16.6 lbs, 7.5 kg
18.4 lbs, 8.4 kg
Mounting Information
Materials of Construction
Coil Construction
Coil
Magnet Composition
Core Details
Basket Materials
Cone Composition
Cone Edge Composition
Dust Cap Composition
Copper
Polyimide
Ferrite
Vented
Die-Cast Aluminum
Paper
Cloth
Solid Composition Paper