DAYTON AUDIO DMA70-PR Aluminium Passive Radiator 34.5Hz Ø6.3cm

DAYTON AUDIO DMA70-PR Aluminium Passive Radiator 34.5Hz Ø6.3cm
The DMA70-PR of Dayton Audio is a passive radiator with a diameter of 6.3cm. This is an excellent solution for a bass boost in smaller speakers. This small passive radiator has everything you would expect from larger models, including an adjustable mass, an Aluminium membrane and a rubber surround.

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Shipping date: 25-11-2020.

Orders placed before 11AM (GMT+1) will be shipped the same day (working day).

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Dayton Audio DMA70-PR

Aluminium Passive Radiator 34.5Hz Ø6.3cm

Dayton Audio DMA70-PR Radiateur Passif Aluminium 34.5Hz Ø6.3cm

The DMA70-PR of Dayton Audio is a passive radiator with a diameter of 6.3cm. This is an excellent solution for a bass boost in smaller speakers. This small passive radiator has everything you would expect from larger models, including an adjustable mass, an Aluminium membrane and a rubber surround. Visually identical to the Dayton Audio DMA range of wideband speakers, this DMA70-PR can also be used with any other small speaker that requires reinforcement in low frequencies. The included threaded rod and butterfly nut at the rear of the diaphragm make it easy to add mass to adjust the passive radiator to your project.

Dayton Audio DMA70-PR Radiateur Passif Aluminium 34.5Hz Ø6.3cm

In general, a passive radiator must have at least twice the air displacement (Vd) of the system's active loudspeaker/subwoofer. To calculate the air displacement: Vd = Sd x Xmax

Operation of a passive radiator

The passive radiator (or passive loudspeaker) is integrated into a box with an active loudspeaker. This passive radiator, while at first glance it may look like a "classic" loudspeaker, does not actually have any engine parts. Thus, there will be no coil, magnet or power supply in its design. Similarly, it will not be electrically connected to a power amplifier.

To diffuse sound, the passive radiator will use the air pressures and depressions induced by the active loudspeaker in the body to vibrate its membrane and produce a sound, thus providing deep bass. Its resonance frequency is determined by its mass and the air contained in the enclosure. It will therefore be possible to vary its resonance frequency on many models and tune it to the speaker by adding mass.

Fonctionnement d'un radiateur passif

Technical characteristics

Specifications
Product typePassive radiator
Speaker seriesDMA
Nominal diameterØ6.3cm (2.5")
Resonant frequency(Fs)34.5Hz
Mechanical quality coefficient (Qms)3.86
Compliance equivalent volume (Vas)0.046ft³
Mechanical compliance of suspension (Cms)1.77mm/N
Diaphragm mass inc. airload (Mms)12g
Max linear excursion7mm
Maximum linear excursion (Sd)22.9cm²
Surface area of coneAluminium
Mounting informations
Total external dimensions70 x 70mm
Cutout diameter64mm
Depth44mm
Number of fixation holes4
 
Data sheet
Loudspeaker diameter (cm)63
Diaphragm typeAluminium
Xmax (mm)7
 
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DAYTON AUDIO DMA70-PR Aluminium Passive Radiator 34.5Hz Ø6.3cm
The DMA70-PR of Dayton Audio is a passive radiator with a diameter of 6.3cm. This is an excellent solution for a bass boost in smaller speakers....

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