Nominal Basket Diameter

15", 381 mm

Nominal Impedance*

8 Ω

Power Rating*

400 W

200 W

Resonance

41 Hz

Usable Frequency Range

46 Hz - 3.5 kHz

Sensitivity*

97 dB

Magnet Weight

20 oz.

Gap Height

0.25", 6.4 mm

Voice Coil Diameter

1.5", 38 mm

Resonant Frequency (fs)

41 Hz

DC Resistance (Re)

5.88 Ω

Coil Inductance (Le)

0.84m H

Mechanical Q (Qms)

7.23

Electromagnetic Q (Qes)

1.53

Total Q (Qts)

1.26

Compliance Equivalent Volume (Vas)

260 liters / 9.18 cu.ft.

Peak Diaphragm Displacement Volume (Vd)

325 cc

Mechanical Compliance of Suspension (Cms)

0.25 mm/N

BL Product (BL)

7.7 T-M

Diaphragm Mass Inc. Airload (MMs)

59 grams

Efficiency Bandwidth Product (EBP)

27

Maximum Linear Excursion (Xmax)

3.8 mm

Surface Area of Cone (Sd)

856.3 cm2

Maximum Mechanical Limit (Xlim)

8.4 mm

Recommended Enclosure Volume

71-85 liters / 2.5-3 cu.ft.

106-177 liters / 3.75-6.25 cu.ft.

Driver Volume Displaced

0.113 cu.ft. / 3.21 liters

Overall Diameter

15.15", 384.8 mm

Baffle Hole Diameter

13.87", 352.3 mm

Front Sealing Gasket

Yes

Rear Sealing Gasket

Yes

Mounting Holes Diameter

0.25", 6.4mm

Mounting Holes B.C.D.

14.56", 369.8mm

Depth

5.83", 148.1 mm

Net Weight

6.7 lbs, 3.04 kg

Shipping Weight

8.8 lbs, 3.99 kgs

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 paper dust cap