KAPPA-12A 12" American Standard Series Speaker

Nominal Basket Diameter

12", 305 mm

Nominal Impedance*

8 Ω

Power Rating*

900 W

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

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

Recommended Enclosure Volume

N/a

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

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