Difuzor Dayton Audio DMA105-4

  • Difuzor Dayton Audio DMA105-4
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Dayton Audio's DMA105-4 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 the DMA105-4 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 DMA105-4 4 Dual Magnet Aluminum Cone Full-Range Driver 4 Ohm

Providing high efficiency with low distortion, Dayton Audio's DMA105-4 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 DMA105-4 is the perfect full-range for the job.

Designed for the highest performance while delivering maximum value, the no compromise design of the DMA105-4 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 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.


Specificatii Difuzor Dayton Audio DMA105-4

Specificatii PRODUCT SPECIFICATIONS

Nominal Diameter

4”

Power Handling (RMS)

35 Watts

Power Handling (max)

70 Watts

Impedance

4 ohms

Frequency Response

70 to 20,000 Hz

Sensitivity

89.8 dB 2.83V/1m

Voice Coil Diameter

1



THIELE-SMALL PARAMETERS

Resonant Frequency (Fs)

72.67 Hz

DC Resistance (Re)

3.4 ohms

Voice Coil Inductance (Le)

0.3 mH

Mechanical Q (Qms)

2.6

Electromagnetic Q (Qes)

0.63

Total Q (Qts)

0.51

Compliance Equivalent Volume (Vas)

0.15 ft.³

Mechanical Compliance of Suspension (Cms)

1.06 mm/N

BL Product (BL)

3.35 Tm

Diaphragm Mass Inc. Airload (Mms)

4.53g

Maximum Linear Excursion (Xmax)

2.5 mm

Surface Area of Cone (Sd)

54.1 cm²



MATERIALS OF CONSTRUCTION

Cone Material

Aluminum

Surround Material

Rubber

Voice Coil Wire Material

Copper

Voice Coil Former

Aluminum

Basket / Frame Material

Polymer

Magnet Material

Neodymium



MOUNTING INFORMATION

Overall Outside Diameter

4.1 x 4.1

Baffle Cutout Diameter

3.54

Depth

1.86

# Mounting Holes

4





OPTIMUM CABINET SIZE (DETERMINED USING BASSBOX 6 PRO HIGH FIDELITY SUGGESTION)

Sealed Volume

0.08 ft.³

Sealed F3

121 Hz

Vented Volume

0.23 ft.³

Vented F3

60 Hz
Tip Echipament Full Range
Diametru 4.0 inch / 10.0 cm

Dayton Audio - Excelenta pe bani putini

Exista multe marci care reusesc sa propuna pietei produse de buna calitate la preturi foarte accesibile, dar raportul bani/valoare la care ajung inginerii de la Dayton Audio depaseste imaginabilul. Cu peste 20 de ani de experienta in domeniu, Dayton Audio a devenit unul dintre varfurile de lance cu care Hi-Fi-ul ieftin iese la atac in eternal disputa cu granzii industriei.

Principiul de la care nu se face niciun fel de rabat este acela de a respecta cele trei elemente considerate esentiale: inovatie, valoare, calitate. Misiunea propusa este aceea de a calibra la milimetru raportul dintre tehnologie si arta, pentru obtinerea unor rezultate sonore imbatabile chiar si pentru clase de pret mult superioare.

Cu o gama larga de componente audio in portofoliu (boxe, amplificatoare, sisteme multicanal, subwoofere, sisteme de prindere etc), compania din Springboro, Ohio, este considerata una dintre cele mai bune pe segmentul de boxe, multe dintre seriile purtand marca Dayton Audio primind notele maxime atat din partea jurnalistilor, cat si a utilizatorilor. Dupa cum spune chiar sloganul companiei - awesomely affordable - excelenta pe bani putini. 

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