Eminence ALPHA 3-8 3" Full-Range Pro & Car Audio / Line Array Speaker 60W 8-Ohms

Eminence ALPHA 3-8 3" Full-Range Pro / Car Audio Speaker 60 Watts 8-Ohm

The Eminence Alpha 3-8 is a versatile, compact, full-range driver perfectly suited for tight-fitting pro audio line array and column array applications. With a program power rating of 60 watts, this 3" driver utilizes an 8.3 oz ferrite magnet in conjunction with an internal neodymium bucking magnet for increased sensitivity and extends the response to 20kHz. The highly pressed cone sandwiches paper with a layer of water-resistant polypropylene for increased stiffness and lower distortion.

Applications

• Full Range Line Array | Pro Audio | Car Audio | Bass Guitar | Soundbars | Satellite System
• Box Type: Sealed | Vented

SPECIFICATION Nominal Basket Diameter

• 3", 76 mm

Nominal Impedance*

• 8 Ω

Power Rating* Program Power

• 60 W

Watts

• 30 W

Resonance

• 118 Hz

Usable Frequency Range

• 150 Hz - 20 kHz

Sensitivity*

• 88.6 dB

Magnet Weight

• 8 oz.

Gap Height

• 0.1", 2.5 mm

Voice Coil Diameter

• 0.787", 20 mm

THIELE & SMALL PARAMETERS Resonant Frequency (fs)

• 118 Hz

DC Resistance (Re)

• 5.12 Ω

Coil Inductance (Le)

• 0.11m H

Mechanical Q (Qms)

• 7.94

Electromagnetic Q (Qes)

• 0.53

Total Q (Qts)

• 0.5

Compliance Equivalent Volume (Vas)

• 0.95 liters / 0.03 cu.ft.

Peak Diaphragm Displacement Volume (Vd)

• 6.9 cc

Mechanical Compliance of Suspension (Cms)

• 0.84 mm/N

BL Product (BL)

• 3.93 T-M

Diaphragm Mass Inc. Airload (MMs)

• 2 grams

Efficiency Bandwidth Product (EBP)

• 220

Maximum Linear Excursion (Xmax)

• 2.4 mm

Surface Area of Cone (Sd)

• 28.6 cm2

Maximum Mechanical Limit (Xlim)

• 4 mm

MOUNTING INFORMATIONRecommended Enclosure Volume Sealed

• Acceptable

Vented

• Acceptable

Driver Volume Displaced

• 0.005 cu.ft. / 0.13 liters

Overall Diameter

• 3.98", 101.1 mm

Baffle Hole Diameter

• 3.04", 77.2 mm

Front Sealing Gasket

• Yes

Rear Sealing Gasket

• Yes

Mounting Holes Diameter

• 0.16", 4.1mm

Mounting Holes B.C.D.

• 3.63", 92.1mm

Depth

• 1.76", 44.6 mm

Net Weight

• 0.9 lbs, 0.41 kg

Shipping Weight

• 1.1 lbs, 0.5 kgs

MATERIALS OF CONSTRUCTION Coil Construction

• Copper voice coil

Coil Former

• Polyimide former

Magnet Composition

• Ferrite magnet

Core Details

• Vented / Flux source cap

    Basket Materials

• Pressed steel basket

Cone Composition

• Paper/Poly sandwich cone

Cone Edge Composition

• Poly cone edge

Dust Cap Composition

• Poly dust cap