Eminence BETA-15A: 15 inch Woofer

Price: $99.99 $89.99

Recommended for professional audio as a woofer in sealed and vented enclosures.
300 watts / 45-3.7kHz / 2″ voice coil
8 ohms

SKU: BETA-15A Categories: , ,



Recommended for professional audio as a woofer in sealed and vented enclosures.

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Click Here to Download PDF Cabinet Design


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*** 98.2

Magnet Weight 34 oz.

Gap Height 0.312″, 7.92mm

Voice Coil Diameter 2″, 50.8mm

Thiele & Small Parameters:

Resonant Frequency (fs) 35Hz

DC Resistance (Re) 6.32

Coil Inductance (Le) 1.10mH

Mechanical Q (Qms) 8.10

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 Diaphram Mass inc.

Airload (Mms) 60 grams

Efficiency Bandwidth Product (EBP) 56

Maximum Linear Excursion (Xmax) 4.0mm

Surface Area of Cone (Sd) 823.7 cm2

Maximum Mechanical Limit (Xlim) 11.6mm

Mounting Information:

Recommended Enclosure

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

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

Overall Diameter 15.15″, 384.8mm

Baffle Hole Diameter 13.77″, 349.6mm

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 kg

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

Dustcap Composition Solid composition paper dust cap

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