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Dayton Audio DMA105-8 4" Dual Magnet Aluminum Cone Full-Range Driver 8 Ohm

Dayton Audio
Part #295-591

Dayton Audio DMA105-8 4" Dual Magnet Aluminum Cone Full-Range Driver 8 Ohm

Dayton Audio
Part #295-591  
Model: DMA105-8
Dayton Audio's DMA105-8 4" high performance full-range driver combines a rigid aluminum cone, powerful dual magnet neodymium motor, and a proprietary open frame to create a state of the art speaker that delivers low distortion, natural response, and amazing high frequency capability. Make Dayton Audio's DMA series drivers and passive radiators the first choice for your next smart speaker, portable Bluetooth speaker, or even high output line array design.
Key Features
  • Excellent high frequency response for true full-range applications
  • Dual neodymium motor to create a symmetrical magnetic field for superb control
  • Large copper cap lowers distortion while improving high frequency response
  • Vented aluminum voice coil former with exceptional heat dissipation for high power handling
  • Exclusive 12-spoke open frame design provides extensive venting and minimal reflection
  • DIY friendly, oversized mounting flange makes installation simple
  • Matching tunable passive radiators also available!
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MSRP: $29.99
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Overview

Dayton Audio DMA105-8 4" Dual Magnet Aluminum Cone Full-Range Driver 8 Ohm

Providing high efficiency with low distortion, Dayton Audio's DMA105-8 4" aluminum cone full-range is an ideal driver for use in many of today's modern speaker designs. Whether you are designing a portable Bluetooth speaker, sound bar, compact desktop speaker, or even a high output line array the DMA105-8 is the perfect full-range for the job.

Designed for the highest performance while delivering maximum value, the no compromise design of the DMA105-8 produces true full-range output capability with minimal distortion. The motor uses dual neodymium magnets creating a strong and symmetrical magnetic field providing high efficiency with excellent cone control. The magnet assembly also includes a large copper cap and sleeve to lower inductance and distortion resulting in improved high frequency response. The 2-layer 1" voice coil is wound on a vented aluminum former providing excellent heat dissipation for high power handling and low power compression. A rubber surround and large spider keeps the lightweight aluminum cone linear with superb mechanical damping. In addition, the aluminum dust cap is attached directly to the voice coil former to improve high frequency response with terrific off axis performance. Holding everything together is a proprietary 12-spoke frame with an extremely open design that has extensive venting under the spider and ample room for high excursion.

Furthermore, Dayton Audio designed the frame for all the DMA Series with DIY speaker builders in mind. The oversized mounting flange means that no precision cutouts are necessary. To ensure an easy installation, the terminals are oriented in such a way that no odd cutouts or notches are needed for connector or wire clearance. Finally, the corners have a 1/8" radius, meaning that for flush mounting you can get a perfect fit using any standard 1/4" straight cut router bit.

Product Details

BrandDayton Audio
ModelDMA105-8
Part Number295-591
UPC848791005299
Unit of MeasureEach
Weight0.5

Product Specifications

Nominal Diameter4"
Bolt Circle Diameter5
Power Handling (RMS)35 Watts
Power Handling (MAX)70 Watts
Impedance8Ω
Frequency Response70 to 20,000Hz
Sensitivity84.8dB 2.83V/1m
Voice Coil Diameter1"

Thiele-Small Parameters

Resonant Frequency (Fs)72Hz
DC Resistance (Re)7.5Ω
Voice Coil Inductance (Le)0.6mH
Mechanical Q (Qms)2.64
Electromagnetic Q (Qes)0.83
Total Q (Qts)0.63
Compliance Equivalent Volume (Vas)0.15ft³
Mechanical Compliance of Suspension (Cms)1mm/N
BL Product (BL)4.47T·m
Diaphragm Mass Inc. Airload (Mms)4.9g
Maximum Linear Excursion (Xmax)2.5mm
Surface Area of Cone (Sd)54.1cm²

Materials of Construction

Cone MaterialAluminum
Surround MaterialRubber
Voice Coil Wire MaterialCopper
Voice Coil FormerAluminum
Basket / Frame MaterialPolymer
Magnet MaterialNeodymium

Mounting Information

Overall Outside Diameter4.1" x 4.1"
Baffle Cutout Diameter3.875"
Depth1.86"
# Mounting Holes4

Parts Express Staff Recommended Enclosure Volume

Sealed Volume0.2ft³
Sealed F391Hz
Vented Volume0.25ft³
Vented F353Hz

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