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Eminence Alpha-8A 8" PA Driver

Eminence SpeakerPart # 290-401
Model: Alpha-8A
Eminence's Alpha-8A 8" professional speaker features high efficiency, excellent power handling, and extended frequency response.

Key Features

  • Cloth accordian surround
  • Polyimide voice coil former
  • Ferrite magnet
  • Pressed steel basket
  • Paper cone
  • Cloth accordian surround
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Eminence Beta-8A 8" Midrange/PA Driver
Price: $99.99Part # 290-404
See all items in Pro Woofers, Subwoofers & Midrange Speakers
Your Price: $87.99
MSRP: $109.99
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Overview

Eminence Alpha-8A 8" PA Driver

The stamped-steel frame Eminence Alpha-8A 8" PA Driver is an ideal woofer for small P.A. and club speaker systems, as well as keyboard or guitar amplifier combos. Made in the USA. 7-year manufacturer's warranty!

Product Details

BrandEminence Speaker
ModelAlpha-8A
Part Number290-401
UPC876358000012
Unit of MeasureEach
Weight5.3

Product Specifications

Nominal Diameter8"
Power Handling (RMS)125 Watts
Power Handling (MAX)250 Watts
Impedance8Ω
Frequency Response58 to 5,000Hz
Sensitivity94dB 2.83V/1m
Voice Coil Diameter1.5"

Thiele-Small Parameters

Resonant Frequency (Fs)73Hz
DC Resistance (Re)5.3Ω
Voice Coil Inductance (Le)0.44mH
Mechanical Q (Qms)4.6
Electromagnetic Q (Qes)0.68
Total Q (Qts)0.59
Compliance Equivalent Volume (Vas)0.63ft³
Mechanical Compliance of Suspension (Cms)0.28mm/N
BL Product (BL)7.8T·m
Diaphragm Mass Inc. Airload (Mms)17g
Maximum Linear Excursion (Xmax)3.2mm
Surface Area of Cone (Sd)210cm²

Materials of Construction

Cone MaterialPaper
Surround MaterialCloth
Voice Coil Wire MaterialCopper
Voice Coil FormerKapton® / Polyimide
Basket / Frame MaterialSteel
Magnet MaterialFerrite

Mounting Information

Overall Outside Diameter8.24"
Baffle Cutout Diameter7.13"
Depth3.25"
# Mounting Holes8

Parts Express Staff Recommended Enclosure Volume

Sealed Volume0.4ft³
Sealed F3115Hz
Vented Volume1.4ft³
Vented F350Hz

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