Suited for pro audio as a mid/hi or full-range and monitor. Also recommended for bass guitar. Works well in sealed or vented enclosures.

SPECIFICATION

Nominal Basket Diameter

12", 305 mm

Nominal Impedance*

8 Ohm

Power Rating*

Program Power

500 W

Watts

250 W

Resonance

44 Hz

Usable Frequency Range

58 Hz - 4.3 kHz

Sensitivity*

99.9 dB

Magnet Weight

7 oz.

Gap Height

0.275", 7 mm

Voice Coil Diameter

2.5", 64 mm

THIELE & SMALL PARAMETERS

Resonant Frequency (fs)

44 Hz

DC Resistance (Re)

5.17 Ohm

Coil Inductance (Le)

0.43m H

Mechanical Q (Qms)

4.17

Electromagnetic Q (Qes)

0.45

Total Q (Qts)

0.41

Compliance Equivalent Volume (Vas)

134.88 liters / 4.76 cu.ft.

Peak Diaphragm Displacement Volume (Vd)

255 cc

Mechanical Compliance of Suspension (Cms)

0.36 mm/N

BL Product (BL)

10.69 T-M

Diaphragm Mass Inc. Airload (MMs)

37 grams

Efficiency Bandwidth Product (EBP)

96

Maximum Linear Excursion (Xmax)

4.9 mm

Surface Area of Cone (Sd)

519.5 cm2

Maximum Mechanical Limit (Xlim)

8.5 mm

MOUNTING INFORMATION

Recommended Enclosure Volume

Sealed

25.49-42.48 liters / 0.9-1.5 cu.ft.

Vented

32.56-127.43 liters / 1.15-4.5 cu.ft.

Driver Volume Displaced

0.05 cu.ft. / 1.42 liters

Overall Diameter

12.38", 314.5 mm

Baffle Hole Diameter

11.06", 280.9 mm

Front Sealing Gasket

Yes

Rear Sealing Gasket

Yes

Mounting Holes Diameter

0.28", 7.1mm

Mounting Holes B.C.D.

11.62", 295.2mm

Depth

6.06", 153.9 mm

Net Weight

5.1 lbs, 2.31 kg

Shipping Weight

6.8 lbs, 3.08 kgs

MATERIALS OF CONSTRUCTION

Coil Construction

Aluminum voice coil

Coil Former

Polyimide former

Magnet Composition

Neodymium magnet

Core Details ...