Eminence Beta-15A 15" Woofer

SPECIFICATION

Nominal Basket Diameter

15", 381mm

Nominal Impedance*

8 ohms

Power Rating**

Watts

300W

Music Program

600W

Resonance

35Hz

Usable Frequency Range

45Hz - 3.7kHz

Sensitivity***

98.2dB

Magnet Weight

34 oz.

Gap Height

0.31", 7.92mm

Voice Coil Diameter

2", 50.8mm

THIELE & SMALL PARAMETERS

Resonant Frequency (fs)

35Hz

DC Resistance (Re)

6.32

Coil Inductance (Le)

1.1mH

Mechanical Q (Qms)

8.1

Electromagnetic Q (Qes)

0.63

Total Q (Qts)

0.58

Compliance Equivalent Volume (Vas)

334.6 liters / 11.8 cu.ft.

Peak Diaphragm Displacement Volume (Vd)

330cc

Mechanical Compliance of Suspension (Cms)

0.35mm/N

BL Product (BL)

11.5 T-M

Diaphragm Mass Inc. Airload (MMs)

60 grams

Efficiency Bandwidth Product (EBP)

56

Maximum Linear Excursion (Xmax)

4mm

Surface Area of Cone (Sd)

823.7 cm2

Maximum Mechanical Limit (Xlim)

11.6mm

MOUNTING INFORMATION

Recommended Enclosure Volume

Sealed

45-62 liters / 1.6-2.2 cu.ft.

Vented

99-175.6 liters / 3.5-6.2 cu.ft.

Driver Volume Displaced

203.3 cu.in. / 3.33 liters

Overall Diameter

15.15", 384.8mm

Baffle Hole Diameter

13.87", 352.3mm

Front Sealing Gasket

Fitted as standard

Rear Sealing Gasket

Fitted as standard

Mounting Holes Diameter

0.25", 6.4mm

Mounting Holes B.C.D.

14.56", 369.9mm

Depth

6.05", 154mm

Net Weight

8.8 lbs, 4 kg

Shipping Weight

10.8 lbs, 4.9 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 paper dust cap