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Morel EW 428 4" Woofer

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Morel
Part #297-120

Morel EW 428 4" Woofer

Morel
Part #297-120  
Model: EW 428
1 Question, 1 Answer or
Morel Elite Series 4" woofers feature large diameter voice coils, open yet strong frames, advanced composite cones, and carefully engineered magnetic circuits.
Key Features
  • DPC (Damped Polymer Composite) cone material
  • Large diameter Hexatech&#153 aluminum voice coil
  • Fully shielded neodymium magnet
  • Uniflow&#153 chassis removes air restrictions
  • High power handling
Your Price: $252.00
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MSRP: $312.99
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Overview

Morel EW 428 4" Woofer

Morel Elite Series 4" woofers feature large diameter voice coils, open yet strong frames, advanced composite cones, and carefully engineered magnetic circuits. Frequency response is extremely flat and overall definition is superb. Suitable for the most demanding audio reproduction systems.

Product Details

BrandMorel
ModelEW 428
Part Number297-120
UPC844621070840
Unit of MeasureEach
Weight1.3

Product Specifications

Nominal Diameter4"
Power Handling (RMS)150 Watts
Power Handling (MAX)800 Watts
Impedance8Ω
Frequency Response55 to 5,500Hz
Sensitivity87dB 2.83V/1m
Voice Coil Diameter2.125"

Thiele-Small Parameters

Resonant Frequency (Fs)62Hz
DC Resistance (Re)6.3Ω
Voice Coil Inductance (Le)0.44mH
Mechanical Q (Qms)2.36
Electromagnetic Q (Qes)0.41
Total Q (Qts)0.35
Compliance Equivalent Volume (Vas)0.17ft³
Mechanical Compliance of Suspension (Cms)1.05mm/N
BL Product (BL)6.1T·m
Diaphragm Mass Inc. Airload (Mms)6.16g
Maximum Linear Excursion (Xmax)4.5mm
Surface Area of Cone (Sd)57cm²

Materials of Construction

Cone MaterialPoly Composite
Voice Coil Wire MaterialAluminum
Voice Coil FormerAluminum
Basket / Frame MaterialSteel
Magnet MaterialNeodymium

Mounting Information

Overall Outside Diameter4.67"
Baffle Cutout Diameter3.7"
Depth2.21"
# Mounting Holes4

Parts Express Staff Recommended Enclosure Volume

Sealed Volume0.07ft³
Sealed F3142.2Hz
Vented Volume0.12ft³
Vented F372.1Hz

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