Nominal Basket Diameter

12", 305 mm

Nominal Impedance*

8 Ω

Power Rating*

Program Power

N/A

Watts

40 W

Resonance

89 Hz

Usable Frequency Range

80 Hz - 5.2 kHz

Sensitivity*

100 dB

Magnet Weight

35 oz.

Gap Height

0.313", 7.95 mm

Voice Coil Diameter

1.75", 44 mm

THIELE & SMALL PARAMETERS

Resonant Frequency (fs)

89 Hz

DC Resistance (Re)

7.4 Ω

Coil Inductance (Le)

0.61m H

Mechanical Q (Qms)

19.73

Electromagnetic Q (Qes)

0.63

Total Q (Qts)

0.61

Compliance Equivalent Volume (Vas)

41.21 liters / 1.46 cu.ft.

Peak Diaphragm Displacement Volume (Vd)

83.64 cc

Mechanical Compliance of Suspension (Cms)

0.11 mm/N

BL Product (BL)

13.55 T-M

Diaphragm Mass Inc. Airload (MMs)

28 grams

Efficiency Bandwidth Product (EBP)

140

Maximum Linear Excursion (Xmax)

1.61 mm

Surface Area of Cone (Sd)

519.5 cm2

Maximum Mechanical Limit (Xlim)

0 mm

MOUNTING INFORMATION

Recommended Enclosure Volume

Sealed

Acceptable

Vented

Acceptable

Driver Volume Displaced

0.079 cu.ft. / 2.24 liters

Overall Diameter

12.17", 309.12 mm

Baffle Hole Diameter

11.13", 282.7 mm

Front Sealing Gasket

Yes

Rear Sealing Gasket

Yes

Mounting Holes Diameter

0.24", 6.096mm

Mounting Holes B.C.D.

11.75", 298.45mm

Depth

6.25", 158.75 mm

Net Weight

8.4 lbs, 3.81 kg

Shipping Weight

10.2 lbs, 4.63 kgs

MATERIALS OF CONSTRUCTION

Coil Construction

Copper voice Coil

Coil Former

Paper former

Magnet Composition

Alnico Magnet

Core Details

Non-vented core

Basket Materials

Pressed steel basket

Cone Composition

Paper cone

Cone Edge Composition

Paper cone edge

Dust Cap Composition

Solid composition felt dust cap