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        DMA70-PR 2-1/2" Aluminum Cone Passive Radiator

        DMA70-PR 2-1/2" Aluminum Cone Passive Radiator


        Dayton Audio DMA70-PR 2-1/2" Aluminum Cone Passive Radiator

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        € 9,88€ 11,95 10+ In stock
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        Product description

        Dayton Audio's DMA70-PR 2-1/2" aluminum cone passive radiator allows you to tune small enclosures lower than possible using conventional ports. Matching the DMA series of drivers drivers perfectly, this passive radiator is perfect for use in ultra-small designs like smart speakers, sound bars, and portable Bluetooth speakers.



        • Perfect match for the Dayton Audio DMA series drivers
        • Allows tuning small enclosures lower than using conventional ports
        • Rear mounted threaded post allows easy mass adjustment for custom tuning
        • DIY friendly, oversized mounting flange makes installation simple


        Product details

        Dayton Audio DMA70-PR 2-1/2" DMA Series Passive Radiator

        The DMA70-PR 2-1/2" passive radiator from Dayton Audio is the perfect option for achieving low tuning frequencies from the smallest enclosure designs. This incredibly small passive radiator has all the features you would expect lager units including adjustable mass, aluminum cone, and rubber surround. Visually identical to Dayton Audio's full-range DMA series drivers, the DMA70-PR can also be used with any small driver that requires a low tuning frequency. The threaded rod and included wing nut on the back of the cone makes it easy to add mass to tune the radiator as needed for your projects. Whether you are building a smart speaker, sound bar, or portable Bluetooth speaker, the Dayton Audio DMA70-PR introduces a new range of possibilities.


        Specifications: • Fs: 34.5 Hz • Vas: 0.046 ft³ (1.32 liters) • Qms: 3.86 • Cms: 1.77 mm/N • Mms: 12.0 g • Rms: 1.49 kg/s • Sd: 22.9 cm² • Xmech: 7 mm • Dimensions: Overall diameter: 2.75" x 2.75", Cutout diameter: 2.52", Depth: 1.73".


        Tip: As a general rule, the passive radiator(s) should have at least double the displacement of air (Vd) as the active woofer(s)/subwoofer(s) in the system.
        To calculate Vd: Sd x Xmax = Vd


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        Article number
        Woofer Series
        DMA series
        Woofer Type
        Passiver radiator
        Resonant Frequency (Fs)
        34.5 Hz
        Mechanical Q (Qms)
        Diaphragm Mass Inc. Airload (Mms)
        12.0 g
        Mechanical Compliance of Suspension (Cms)
        1.77 mm/N
        Surface Area of Cone (Sd)
        22.9 cm²
        Compliance Equivalent Volume (Vas)
        0.046 ft³ (1.32 liters)
        Maximum Linear Excursion (Xmax)
        7 mm
        Driver's Mechanical Losses (Rms)
        1.49 kg/s
        Cone / Diaphragm Material
        Overall Outside Diameter
        2.75" x 2.75"
        Overall Depth
        Baffle Cutout Diameter
        # Mounting Holes

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        4 of 5
        Very good In a compact size. Makes me want to try the larger units to see how low they can go
        By Patrick a. on 4 July 2019
        DMA70-PR 2-1/2" Aluminum Cone Passive Radiator
        € 9,88
        € 11,95
        DMA70-PR 2-1/2" Aluminum Cone Passive Radiator
        10+ In stock
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