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

    € 9,05€ 10,95 Out of stock: delivery time is 1 week
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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



    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


    4 from 5Based on 1 reviews
    Review this product
    4 van 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
    € 9,05
    € 10,95
    DMA70-PR 2-1/2" Aluminum Cone Passive Radiator
    0 In stock: delivery time is 1 week
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