SPECIFICATION

Nominal Basket Diameter

8", 203 mm

Nominal Impedance*

8 Ω

Power Rating*

Program Power

500 W

Watts

250 W

Resonance

62 Hz

Usable Frequency Range

95 Hz - 3.3 kHz

Sensitivity*

92.9 dB

Magnet Weight

38 oz.

Gap Height

0.312", 7.9 mm

Voice Coil Diameter

2", 51 mm

THIELE & SMALL PARAMETERS

Resonant Frequency (fs)

62 Hz

DC Resistance (Re)

5.37 Ω

Coil Inductance (Le)

0.67m H

Mechanical Q (Qms)

6.57

Electromagnetic Q (Qes)

0.31

Total Q (Qts)

0.29

Compliance Equivalent Volume (Vas)

21.43 liters / 0.76 cu.ft.

Peak Diaphragm Displacement Volume (Vd)

67.2 cc

Mechanical Compliance of Suspension (Cms)

0.35 mm/N

BL Product (BL)

11.21 T-M

Diaphragm Mass Inc. Airload (MMs)

19 grams

Efficiency Bandwidth Product (EBP)

201

Maximum Linear Excursion (Xmax)

3.2 mm

Surface Area of Cone (Sd)

210 cm2

Maximum Mechanical Limit (Xlim)

6.9 mm

MOUNTING INFORMATION

Recommended Enclosure Volume

Sealed

3.4-9.91 liters / 0.12-0.35 cu.ft.

Vented

7.08-16.99 liters / 0.25-0.6 cu.ft.

Driver Volume Displaced

0.028 cu.ft. / 0.79 liters

Overall Diameter

8.24", 209.3 mm

Baffle Hole Diameter

7.13", 181.1 mm

Front Sealing Gasket

Yes

Rear Sealing Gasket

Yes

Mounting Holes Diameter

0.22", 5.6mm

Mounting Holes B.C.D.

7.75", 196.9mm

Depth

3.5", 88.9 mm

Net Weight

6.8 lbs, 3.08 kg

Shipping Weight

7.5 lbs, 3.4 kgs

MATERIALS OF CONSTRUCTION

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

Sealed cloth cone edge

Dust Cap Composition

Zurette dust cap