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Dayton Audio CE Series CE28A-4R 1-1/8" Round Frame Mini Speaker

Brand:|Model: CE28A-4R|Part # 285-107

The Dayton Audio CE28A-4R features a high-quality design, excellent audio quality, and easy bond-in-place or press-fit mounting for small projects where high-fidelity sound is needed. A discreet black-anodized aluminum diaphragm delivers sonic detail. 4-ohm impedance.
This Product Is No Longer Available
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Product Details

Dayton Audio CE Series CE28A-4R 1-1/8" Round Frame Mini Speaker

Dayton Audio is pleased to introduce the new Commercial Engineering (CE) Series of small loudspeaker drivers. Engineers, designers, and integrators will benefit from how effortlessly these speaker components satisfy the diverse demands associated with consumer electronics and audio-enabled projects.

Multiple types and styles are available within the CE Series driver family. Each was produced to provide excellent audio quality no matter what the overall system design goals may be, and to suit a wide spectrum of engineering requirements. These versatile yet economical loudspeakers are available in sizes from 28 mm (1-1/8") to 90 mm (3-1/2") in diameter, and with power ratings from 1.5 watts to 5 watts continuous RMS power.

The Dayton Audio CE28A-4R (round frame) offers large-driver features in a mini-speaker format. It features an elegant black-anodized concave aluminum diaphragm and compact neodymium motor structure for high fidelity and output. Perfect for ultra-miniature multimedia speakers, docking speakers for portable music players, and alarm clocks, among other uses. The round frame can be press-fit or glued in place.

Product Specifications
  • Nominal Diameter1"
  • Power Handling (RMS)2 Watts
  • Power Handling (max)4 Watts
  • Impedance4 ohms
  • Frequency Response300 to 20,000 Hz
  • Sensitivity79 dB 2.83V/1m
  • Voice Coil Diameter0.67"
Thiele-Small Parameters
  • Resonant Frequency (Fs)300 Hz
  • DC Resistance (Re)3.55 ohms
  • Voice Coil Inductance (Le)0.15 mH
  • Mechanical Q (Qms)2.45
  • Electromagnetic Q (Qes)1.56
  • Total Q (Qts)0.95
  • Mechanical Compliance of Suspension (Cms)1.03 mm/N
  • BL Product (BL)1.08 Tm
  • Diaphragm Mass Inc. Airload (Mms)0.26g
  • Maximum Linear Excursion (Xmax)1.1 mm
  • Surface Area of Cone (Sd)2.99 cm²
Materials of Construction
  • Cone MaterialAluminum
  • Surround MaterialFoam
  • Magnet MaterialNeodymium
Mounting Information
  • Overall Outside Diameter1.09"
  • Baffle Cutout Diameter1.05"
  • Depth0.44"
Dayton Audio CE Series CE28A-4R 1-1/8" Round Frame Mini Speaker
  • BrandDayton Audio
  • ModelCE28A-4R
  • Part Number285-107
  • UPC848791000447
  • Product CategoryMidrange / Midbass Drivers & Full-Range Speakers
  • Unit of MeasureEA
  • Product Rating
    (5 Reviews)
  • Weight0.05 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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Dayton Audio CE Series CE28A-4R 1-1/8" Round Frame Mini Speaker


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