SPECIFICATION

Nominal Basket Diameter

12", 305 mm

Nominal Impedance*

8 Ω

Power Rating*

Program Power

300 W

Watts

150 W

Resonance

49 Hz

Usable Frequency Range

51 Hz - 4.3 kHz

Sensitivity*

95.6 dB

Magnet Weight

20 oz.

Gap Height

0.25", 6.4 mm

Voice Coil Diameter

1.5", 38 mm

THIELE & SMALL PARAMETERS

Resonant Frequency (fs)

49 Hz

DC Resistance (Re)

6.3 Ω

Coil Inductance (Le)

0.79m H

Mechanical Q (Qms)

6.53

Electromagnetic Q (Qes)

0.88

Total Q (Qts)

0.77

Compliance Equivalent Volume (Vas)

121.5 liters / 4.29 cu.ft.

Peak Diaphragm Displacement Volume (Vd)

125 cc

Mechanical Compliance of Suspension (Cms)

0.32 mm/N

BL Product (BL)

8.5 T-M

Diaphragm Mass Inc. Airload (MMs)

33 grams

Efficiency Bandwidth Product (EBP)

56

Maximum Linear Excursion (Xmax)

2.4 mm

Surface Area of Cone (Sd)

519.5 cm2

Maximum Mechanical Limit (Xlim)

6.6 mm

MOUNTING INFORMATION

Recommended Enclosure Volume

Sealed

17-22.7 liters / 0.6-0.8 cu.ft.

Vented

56.6-113.3 liters / 2-4 cu.ft.

Driver Volume Displaced

0.063 cu.ft. / 1.78 liters

Overall Diameter

12.26", 311.4 mm

Baffle Hole Diameter

11.06", 280.9 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

4.73", 120.1 mm

Net Weight

5.3 lbs, 2.4 kg

Shipping Weight

7.4 lbs, 3.36 kgs

MATERIALS OF CONSTRUCTION

Coil Construction

Copper voice coil

Coil Former

Polyimide former

Magnet Composition

Ferrite magnet

Core Details

Vented and extended core

Basket Materials

Pressed steel basket

Cone Composition

Paper cone

Cone Edge Composition

Cloth cone edge

Dust Cap Composition

Solid composition felt dust cap