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2x Eminence ALPHA-8A 8" Professional Mid-Range / Mid-Bass Replacement Speaker 250W

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SKU:
2x Eminence ALPHA-8A H.R
UPC:
876358000012
Condition:
New
Order before 3PM (EST) Mon-Fri for Same Day Shipping
$119.98

Product Description

Eminence ALPHA-8A Professional Mid-Range / Mid-Bass Replacement Speaker 250 Watts

Recommended for professional audio mid-range applications in a sealed cabinet, or as a mid-bass in a vented satellite enclosure.

SPECIFICATION

                                                                   

Nominal Basket Diameter

  • 8", 203 mm

Nominal Impedance*

  • 8 Ω

Power Rating*

 

Program Power

  • 250 W

Watts

  • 125 W

Resonance

  • 73 Hz

Usable Frequency Range

  • 58 Hz - 5 kHz

Sensitivity*

  • 94 dB

Magnet Weight

  • 20 oz.

Gap Height

  • 0.25", 6.4 mm

Voice Coil Diameter

  • 1.5", 38 mm

THIELE & SMALL PARAMETERS

 

Resonant Frequency (fs)

  • 73 Hz

DC Resistance (Re)

  • 5.3 Ω

Coil Inductance (Le)

  • 0.44m H

Mechanical Q (Qms)

  • 4.6

Electromagnetic Q (Qes)

  • 0.68

Total Q (Qts)

  • 0.59

Compliance Equivalent Volume (Vas)

  • 17.7 liters / 0.63 cu.ft.

Peak Diaphragm Displacement Volume (Vd)

  • 67 cc

Mechanical Compliance of Suspension (Cms)

  • 0.28 mm/N

BL Product (BL)

  • 7.8 T-M

Diaphragm Mass Inc. Airload (MMs)

  • 17 grams

Efficiency Bandwidth Product (EBP)

  • 107

Maximum Linear Excursion (Xmax)

  • 3.2 mm

Surface Area of Cone (Sd)

  • 210 cm2

Maximum Mechanical Limit (Xlim)

  • 7.1 mm

MOUNTING INFORMATION

 

Recommended Enclosure Volume

 

Sealed

  • 5-7 liters / 0.18-0.25 cu.ft.

Vented

  • 16.7-25.5 liters / 0.59-0.9 cu.ft.

Driver Volume Displaced

  • 0.02 cu.ft. / 0.58 liters

Overall Diameter

  • 8.24", 209.3 mm

Baffle Hole Diameter

  • 7.13", 181.1 mm

Front Sealing Gasket

  • Yes

Rear Sealing Gasket

  • Yes

Mounting Holes Diameter

  • 0.22", 5.6mm

Mounting Holes B.C.D.

  • 7.75", 196.9mm

Depth

  • 3.25", 82.6 mm

Net Weight

  • 4.3 lbs, 1.95 kg

Shipping Weight

  • 5.1 lbs, 2.31 kgs

MATERIALS OF CONSTRUCTION

 

Coil Construction

  • Copper voice coil

Coil Former

  • Polyimide former

Magnet Composition

  • Ferrite magnet

Core Details

  • Vented core

 

 

Basket Materials

  • Pressed steel basket

Cone Composition

  • Paper cone

Cone Edge Composition

  • Cloth cone edge

Dust Cap Composition

  • Solid composition paper dust cap