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Morel EM 428 4" DPC Cone Midrange

Brand:|Model: EM 428|Part # 287-032
A unique 4" unit that incorporates a damped polymer composite cone, 2-1/8" Hexatech™ aluminum voice coil, neodymium magnet system, high power handling, and a smooth response up to 5kHz.
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List Price$195.99
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Part # 287-032
  • Uniflow™ steel chassis
  • Neodymium magnet system
  • Shallow profile DPC (Damped Polymer Composite) cone
  • 2-1/8" large Hexatech™ aluminum voice coil

Product Details

Morel EM 428 4" DPC Cone Midrange

A unique 4" unit that incorporates a damped polymer composite cone, 2-1/8" Hexatech™ aluminum voice coil, neodymium magnet system, high power handling, and a smooth response up to 5kHz. These features combine to produce a very impressive midrange driver. Improved version of Morel's famous MW 114S.

Product Specifications
  • Nominal Diameter4"
  • Power Handling (RMS)150 Watts
  • Power Handling (max)210 Watts
  • Impedance8 ohms
  • Frequency Response50 to 5,000 Hz
  • Sensitivity87 dB 2.83V/1m
  • Voice Coil Diameter2.125"
Thiele-Small Parameters
  • Resonant Frequency (Fs)68 Hz
  • DC Resistance (Re)5.4 ohms
  • Mechanical Q (Qms)3.03
  • Electromagnetic Q (Qes)0.48
  • Total Q (Qts)0.41
  • Compliance Equivalent Volume (Vas)0.12 ft.³
  • Mechanical Compliance of Suspension (Cms)0.88 mm/N
  • Diaphragm Mass Inc. Airload (Mms)6.55g
  • Maximum Linear Excursion (Xmax)3 mm
  • Surface Area of Cone (Sd)57 cm²
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"
  • Depth2.2"
  • # Mounting Holes4
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)
  • Sealed Volume0.04 ft.³
  • Sealed F3131 Hz
  • Vented Volume0.11 ft.³
  • Vented F369 Hz
Morel EM 428 4" DPC Cone Midrange
  • BrandMorel
  • ModelEM 428
  • Part Number287-032
  • UPC844632065989
  • Product CategoryWoofers
  • Unit of MeasureEA
  • Product Rating
    (1 Reviews)
  • Weight1.2 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

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Morel EM 428 4" DPC Cone Midrange
Morel EM 428 4" DPC Cone Midrange is rated 3.0 out of 5 by 1.
Rated 3 out of 5 by from 3 way WMTTMWThis would be my first 3 way design and I chose this Morel 4" mid based on specs and overall system design goals...I wanted desperately to use the SCM 634 Supreme mid but I couldnt justify the cost to my client....Its difficult to rate thus far as the high end of my 3 way is the Dayton PT2C-8 planar tweeter and this driver definitely needs some breaking in... Ill just say thus far that my initial listening tests are very positive with mainly classical and jazz music played on a Marantz 6001 SACD and a Denon AVR....The low end of this design is the Morel CAW938 9" woofer... The bass extension is tight and I even left my subwoofers off for the first hour of listening and was very pleased... Mid-range is smooth and seamless into the upper range...The xover is a Dayton 3 way 625/5k ... I have used the PT2C-8 in my way designs and it never dissapoints And its back to a very reasonable price point ...Although the Morel drivers were 20% off, which also figured in my decision to buy them, they are still pricey which lowered my value rating to average... That being said they appear to be very well constructed and so far I am very satisfied with the overall sound quality and would definitely choose the same components again and would recommend this 3 way design to anyone... I built these for a very important client of mine to upgrade his Home Theater.... I did do the research and the math before begging this project ... 2 weeks of very hard work and a few redo's to get them just right....I'll follow up in a month or so ...
Date published: 2013-10-23
  • 2016-02-08T06:23CST
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Product Q&A

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Morel EM 428 4" DPC Cone Midrange

May I know can this mid range speaker replace my faulty Sony SS-m7 mid range speakers

Asked by: Pery
Please contact our tech support for more help with this question, or 800-338-0531 x1.
Answered by: MattP
Date published: 2015-02-02

Can I use the Morel EM 428 4" DPC cone mid-range speaker as a fender passport 250 replacement speaker ?

Asked by: LenFitz
This would not be a good choice as a replacement speaker in that system. I would recommend contacting Fender directly for a replacement which will likely be cheaper, and be more suitable for the application.
Answered by: MattP
Date published: 2014-11-03

Is this a car audio or home audio speaker?

Asked by: giamb9332
This can be used in either application.
Answered by: MattP
Date published: 2014-09-09
  • 2016-02-08T07:15CST
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