Eminence 15' 400W 8-Ohm PRO Audio & Bass Guitar Replacement Woofer ALPHA-15A

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Eminence 15" 400W 8-Ohm PRO Audio & Bass Guitar Replacement Woofer ALPHA-15A - NEW

Recommended for professional audio and bass guitar applications as a woofer in a vented or sealed enclosure.

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SpecificationNominal Basket Diameter

• 15", 381 mm

Nominal Impedance*

• 8 ?

Power Rating*Program Power

• 400 W

Watts

• 200 W

Resonance

• 41 Hz

Usable Frequency Range

• 46 Hz - 3.5 kHz

Sensitivity*

• 97 dB

Magnet Weight

• 25 oz.

Gap Height

• 0.25", 6.4 mm

Voice Coil Diameter

• 1.5", 38 mm

Thiele & Small ParametersResonant Frequency (fs)

• 41 Hz

DC Resistance (Re)

• 5.88 ?

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

Mounting InformationRecommended Enclosure VolumeSealed

• 71-85 liters / 2.5-3 cu.ft.

Vented

• 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

Materials of ConstructionCoil 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

Benefits

• High 400W program power rating supports powerful audio output
• 8-Ohm impedance suitable for various amplifier matching
• Vented core and extended bass response enhance sound quality
• Compatible with both sealed and vented enclosure setups
• Durable pressed steel basket construction ensures structural stability
• Copper voice coil and polyimide former improve heat dissipation
• Cloth cone edge and solid paper dust cap increase durability
• Sensitivity of 97 dB provides efficient sound production
• Mounting holes designed for easy installation
• Versatile usage for both pro audio systems and bass guitars

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