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Eminence Alpha 3-8 3" Full-Range Driver 8 Ohm

Eminence Speaker
Part #290-4014

Eminence Alpha 3-8 3" Full-Range Driver 8 Ohm

Eminence Speaker
Part #290-4014  
Model: Alpha 3-8
The Alpha 3-8 from Eminence Loudspeakers will allow you to pack big performance into small spaces. Perfectly suited for portable speaker systems, column, and line array applications this is a truly versatile full range driver.
Key Features
  • True full range response with useful output up to 20,000 Hz
  • Unique internal neodymium magnet improves efficiency and high frequency response
  • Impressive efficiency for a driver this small
  • Poly coated paper cone produces smooth response and resists water
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Overview

Eminence Alpha 3-8 3" Full-Range Driver 8 Ohm

Eminence's Alpha 3-8 3" is a versatile compact full-range driver perfectly suited for tight fitting pro audio line array and column array applications. An 8.3 oz ferrite magnet used in conjunction with an internal neodymium bucking magnet increases the sensitivity and extends the response out to 20kHz. The highly pressed cone sandwiches paper with a layer of water-resistant polypropylene for increased stiffness and lower distortion. With such high efficiency and wide frequency response this driver would also be an excellent choice for small portable speaker systems.

Product Details

BrandEminence Speaker
ModelAlpha 3-8
Part Number290-4014
UPC876358003877
Unit of MeasureEach
Weight1.1

Product Specifications

Nominal Diameter3"
Bolt Circle Diameter3.63
Power Handling (RMS)30 Watts
Power Handling (MAX)60 Watts
Impedance8Ω
Frequency Response150 to 20,000Hz
Sensitivity88.6dB 2.83V/1m
Voice Coil Diameter0.79"

Thiele-Small Parameters

Resonant Frequency (Fs)118Hz
DC Resistance (Re)5.12Ω
Voice Coil Inductance (Le)0.11mH
Mechanical Q (Qms)7.94
Electromagnetic Q (Qes)0.53
Total Q (Qts)0.5
Compliance Equivalent Volume (Vas)0.03ft³
Mechanical Compliance of Suspension (Cms)0.84mm/N
BL Product (BL)3.93T·m
Diaphragm Mass Inc. Airload (Mms)2g
Maximum Linear Excursion (Xmax)2.4mm
Surface Area of Cone (Sd)28.6cm²

Materials of Construction

Cone MaterialPoly
Surround MaterialRubber
Voice Coil Wire MaterialCopper
Voice Coil FormerKapton® / Polyimide
Basket / Frame MaterialSteel
Magnet MaterialFerrite

Mounting Information

Overall Outside Diameter3.98"
Baffle Cutout Diameter3.04"
Depth1.76"
# Mounting Holes4

Parts Express Staff Recommended Enclosure Volume

Sealed Volume0.04ft³
Sealed F3220Hz
Vented Volume0.06ft³
Vented F390Hz

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