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      Dayton Audio DMA70-8 2-1/2" Dual Magnet Aluminum Cone Full-Range Driver

      € 17,31€ 20,95 10+ In stock
      • -5% Order 4 for only € 19,90 per piece

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      Product description

      Dayton Audio's DMA70-8 2-1/2” 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 the DMA70-8 the first choice for your next smart speaker, portable Bluetooth speaker, or even high output line array design.

       

      Highlights

      • 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 8-spoke open frame design provides extensive venting and minimal reflection
      • DIY friendly, oversized mounting flange makes installation simple
      • Matching tunable passive radiators also available!

       

      Product details

      Dayton Audio DMA70-8 2-1/2” Dual Magnet Aluminum Cone Full-Range Driver 8 Ohm

       

      Providing high efficiency with low distortion, Dayton Audio's DMA70-8 2-1/2” 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 DMA70-8 is the perfect full-range for the job.

      Designed for the highest performance while delivering maximum value, the no compromise design of the DMA70-8 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 an extensively 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 8-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 1/8" straight cut router bit.

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      Specifications

      Article number
      DMA70-8
      Woofer Series
      DMA series
      Woofer Type
      Full-range
      Nominal Diameter
      2-1/2”
      Power Handling (RMS)
      20 Watts
      Power Handling (max)
      30 Watts
      Impedance (Z)
      8 ohms
      Sensitivity
      82.9 dB 2.83V/1m
      Frequency Response
      110 to 20,000 Hz
      Voice Coil Diameter
      1"
      DC Resistance (Re)
      7.5 ohms
      Voice Coil Inductance (Le)
      0.47 mH
      Resonant Frequency (Fs)
      113 Hz
      Mechanical Q (Qms)
      2.06
      Electromagnetic Q (Qes)
      0.66
      Total Q (Qts)
      0.50
      Diaphragm Mass Inc. Airload (Mms)
      2.6g
      Mechanical Compliance of Suspension (Cms)
      0.73 mm/N
      Surface Area of Cone (Sd)
      22.9 cm²
      BL Product (BL)
      4.7 Tm
      Compliance Equivalent Volume (Vas)
      0.02 ft.³
      Maximum Linear Excursion (Xmax)
      2.0 mm
      Cone / Diaphragm Material
      Aluminum
      Surround Material
      Rubber
      Voice Coil Wire Material
      Copper
      Voice Coil Former
      Aluminum
      Basket / Frame Material
      Polymer
      Magnet Material
      Neodymium
      Overall Outside Diameter
      2.75" x 2.75"
      Overall Depth
      1.51"
      Baffle Cutout Diameter
      2.51"
      # Mounting Holes
      8
      Sealed Volume
      0.013ft.³
      Sealed F3
      179 Hz
      Vented Volume
      0.036 ft.³
      Vented F3
      88 Hz

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      Reviews

      5 from 5Based on 5 reviews
      Review this product
      4 of 5
      I also used them to repair a set of Logitech Z-2300. They fit great, you only need to elongate the screw holes a bit, and use longer screws. I feel that the highest notes are a bit muffled, i think the original Logitech had a better range - But this is just from memory, no measurements or A-B tests.
      By Carsten Lorenzen on 16 February 2022
      5 of 5
      Koper heeft geen omschrijving achtergelaten.
      By Joep F. on 22 December 2020
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      DMA70-8 2-1/2" Dual Magnet Aluminum Cone Full-Range Driver
      € 17,31
      € 20,95
      DMA70-8 2-1/2" Dual Magnet Aluminum Cone Full-Range Driver
      10+ In stock
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