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Dayton Audio DMA70-4 2-1/2" Aluminum Cone Full-Range Driver

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  • Artikelcode: DMA70-4
  • Voorraad: >10 Op voorraad

Dayton Audio's DMA70-4 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 am

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Productomschrijving

Dayton Audio DMA70-4 2-1/2" Aluminum Cone Full-Range Driver

Dayton Audio's DMA70-4 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 DMA70-4 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 DMA70-4 2-1/2” Dual Magnet Aluminum Cone Full-Range Driver 4 Ohm

 

Providing high efficiency with low distortion, Dayton Audio's DMA70-4 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 DMA70-4 is the perfect full-range for the job.

Designed for the highest performance while delivering maximum value, the no compromise design of the DMA70-4 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 1/4" straight cut router bit.

Specificaties

Specificaties voor: DMA70-4 2-1/2" Aluminum Cone Full-Range Driver

  • Woofer Series Specifieke woofer productlijn van de fabfrikant. DMA series
  • Woofer Type Het type driver bijvoorbeeld subwoofer, mid-woofer, full range of coaxiale woofer. Full-range
  • Nominal Diameter Geschatte diameter van de driver in inch gemeten. 2-1/2”
  • Power Handling (RMS) De belasting in elektrisch vermogen uitgedrukt in watt dat een luidsprekerspoel kan opnemen voor een langere tijd, zonder de luidsprekerspoel te beschadigen. RMS staat voor Root Mean Square. 20 Watts
  • Power Handling (max) De maximale belasting in elektrisch vermogen uitgedrukt in watt dat een luidsprekerspoel voor een zeer korte tijd kan opnemen zonder de luidspreker te beschadigen of het geluidskwaliteit niet hoorbaar beïnvloedt. 30 Watts
  • Bekijk alle specificaties
  • Continuous Program Power
  • Impedance 4 ohms
  • Sensitivity 86.2 dB 2.83V/1m
  • Frequency Response 120 to 20,000 Hz
  • Voice Coil Diameter 1"
  • Magnet Weight
  • DC Resistance (Re) 3.98 ohms
  • Voice Coil Inductance (Le) 0.3 mH
  • Resonant Frequency (Fs) 113 Hz
  • Mechanical Q (Qms) 2.04
  • Electromagnetic Q (Qes) 0.56
  • Total Q (Qts) 0.44
  • Diaphragm Mass Inc. Airload (Mms) 2.8g
  • Moving Mass Of Diaphragm (Mmd)
  • Mechanical Compliance of Suspension (Cms) 0.71 mm/N
  • Surface Area of Cone (Sd) 22.9 cm²
  • Volume of Displacement (Vd)
  • BL Product (BL) 3.7 Tm
  • Compliance Equivalent Volume (Vas) 0.018 ft.³
  • Maximum Linear Excursion (Xmax) 2.0 mm
  • Driver's Mechanical Losses (Rms)
  • Cone / Diaphragm Material Aluminum
  • Surround Material Rubber
  • Voice Coil Wire Material Copper
  • Voice Coil Former Aluminum
  • Dual Voice Coil
  • Basket / Frame Material Polymer
  • Magnet Material Neodymium
  • Shielded
  • Overall Outside Diameter 2.75" x 2.75"
  • Overall Depth 1.51"
  • Baffle Cutout Diameter 2.51"
  • Bolt Circle Diameter
  • # Mounting Holes 4
  • Mounting Hole Diameter
  • Sealed Volume 0.006ft.³
  • Sealed F3 219 Hz
  • Vented Volume 0.029 ft.³
  • Vented F3 102 Hz

Documenten

Reviews

Gebruikers beoordelingen 4.5 / 5 Reviews: (2)

  • CH Door C. H. aan 03-11-2020 17:54

    4 / 5

    Mini-Review DaytonAudio DMA70-4 driver.
    -toepassing: geluidsbron voor audiometingen in gesloten ruimtes (o.m. nagalm/RT) en in open lucht (isolatie/demping/..); => eis is licht, goed transportabel.
    - gebruikt in (6 mm MDF) kastje, ca. 11x11x6 cm uitwendig, gevuld met polyesterwol en kapok;
    - versterker: 2x15 W (nom., 4 Ohm), beide kanalen parallel (let op: met passende weerstanden en inductors!);
    - met 14.8 V Lipo accu bruikbaar vermogen ca. 12W (bij 15V accu);
    - versterker bandbreedte ca. 10Hz - meer dan 25 kHz;
    -overall bandbreedte: 200 Hz - 20 kHz (op de as).
    Werkt uitstekend gedurende uren achtereen (eis voor veldmetingen).
    Nadelen:
    - opbouw driver is opgebouwd voor "achter het frontpaneel", maar de "zachte" afdichting is daarvoor aan de verkeerde kant aangebracht!
    - de spec geeft Xmax=2 mm, maar onduidelijk is of dat 2mm p-p of 4mm p-p betekent.
    Totaal oordeel: 4 sterren

  • PV Door Popovici V. aan 14-07-2020 16:49

    5 / 5

    Die Lautsprecher sind perfekt für den JBL Xtreme. Viel Bass und ein guter Klangqualität. Auch sind die Lautsprecher relativ leicht im Vergleich zu dem von jbl xtreme

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DMA70-4 2-1/2" Aluminum Cone Full-Range Driver

DMA70-4 2-1/2" Aluminum Cone Full-Range Driver

€ 14,95

SoundImports 9,6 / 10 - 2.351 Reviews @ Kiyoh
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