Nominal Basket Diameter

12", 305 mm

Nominal Impedance*

8 Ω

Power Rating*

500 W

250 W

Resonance

47 Hz

Usable Frequency Range

57 Hz - 4.6 kHz

Sensitivity*

97.3 dB

Magnet Weight

38 oz.

Gap Height

0.312", 7.9 mm

Voice Coil Diameter

2", 51 mm

Resonant Frequency (fs)

47 Hz

DC Resistance (Re)

5.42 Ω

Coil Inductance (Le)

0.64m H

Mechanical Q (Qms)

5.64

Electromagnetic Q (Qes)

0.52

Total Q (Qts)

0.48

Compliance Equivalent Volume (Vas)

120.94 liters / 4.27 cu.ft.

Peak Diaphragm Displacement Volume (Vd)

188.6 cc

Mechanical Compliance of Suspension (Cms)

0.3 mm/N

BL Product (BL)

10.79 T-M

Diaphragm Mass Inc. Airload (MMs)

38 grams

Efficiency Bandwidth Product (EBP)

90

Maximum Linear Excursion (Xmax)

3.5 mm

Surface Area of Cone (Sd)

538.9 cm2

Maximum Mechanical Limit (Xlim)

10.4 mm

Recommended Enclosure Volume

26.9-70.79 liters / 0.95-2.5 cu.ft.

32.85-158.58 liters / 1.16-5.6 cu.ft.

Driver Volume Displaced

0.071 cu.ft. / 2 liters

Overall Diameter

12.03", 305.6 mm

Baffle Hole Diameter

11.07", 281.2 mm

Front Sealing Gasket

Yes

Rear Sealing Gasket

Yes

Mounting Holes Diameter

0.25", 6.4mm

Mounting Holes B.C.D.

11.59", 294.4mm

Depth

4.47", 113.5 mm

Net Weight

7.8 lbs, 3.54 kg

Shipping Weight

10 lbs, 4.54 kgs

Coil Construction

Copper voice coil

Coil Former

Kapton former

Magnet Composition

Ferrite magnet

Core Details

Tapered Coax

Basket Materials

Pressed steel basket

Cone Composition

Paper cone

Cone Edge Composition

Cloth cone edge

Dust Cap Composition

Screened cloth dust cap