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    Dayton Audio ND140-PR 5-1/4" Aluminum Cone Passive Radiator

    € 16,49€ 19,95 >10 In stock: delivery time 1-4 business days
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    Product description

    The Dayton Audio ND140-PR 5-1/4" passive radiator makes it easy to tune small enclosures lower without increasing overall enclosure size. With a one-piece aluminum cone, rubber surround, high excursion capability, and easily adjustable mass, this passive radiator is perfect for building extremely compact speaker systems capable of incredible low frequency output.



    • Rigid black anodized aluminum alloy cone
    • High excursion capability: 18 mm peak to peak
    • Same "family look" as ND Series woofers
    • Adjustable mass for a vast range of tuning frequencies


    Product details                                                                     

    Dayton Audio ND140-PR 5-1/4" Aluminum Cone Passive Radiator


    Tune small enclosures with Dayton Audio's ND140-PR 5-1/4" passive radiator in speaker designs where a conventional port is not a viable option. This compact passive radiator includes all of the features you expect with larger radiators including high excursion capability, aluminum cone, rubber surround, and adjustable mass. Visually identical to Dayton Audio's popular ND series drivers, the ND140-PR can be used with any small speaker. 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 multi-driver array, sound bar, or portable Bluetooth speaker, the Dayton Audio ND140-PR introduces a new range of possibilities.


    The ND140-PR 5-1/4" passive radiator includes:

    (1) Passive radiator

    (2) 18.5 gram disk weights

    (1) Wing nut


    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.


    Article number
    Woofer Series
    ND Series
    Woofer Type
    Passive Radiator
    Nominal Diameter
    Resonant Frequency (Fs)
    44.2 Hz
    Mechanical Q (Qms)
    Diaphragm Mass Inc. Airload (Mms)
    Mechanical Compliance of Suspension (Cms)
    0.79 mm/N
    Surface Area of Cone (Sd)
    86.6 cm²
    Compliance Equivalent Volume (Vas)
    8.4 liters
    Maximum Linear Excursion (Xmax)
    9 mm
    Driver's Mechanical Losses (Rms)
    1.13 kg/s
    Cone / Diaphragm Material
    Aluminum Cone
    Surround Material
    Basket / Frame Material
    Overall Outside Diameter
    Overall Depth
    Baffle Cutout Diameter
    # Mounting Holes


    5 from 5Based on 3 reviews
    Review this product
    5 of 5
    Tested those (for a BoomBox build) with the ND105 (they could handle the drivers but did not get the wanted bass from the setup) AND with TangBand W5-1138SMF (mini earthquake 8inch cube - bass is really powerful but the ND140-PR run out of steam on a half way) ... used WinISD Pro 0.50 Alpha 7 for cabin design.
    By Bostjan K. on 14 April 2021
    5 of 5
    I can't rate this product yet, I'm still to test it but what I can say that is that soundimports have been faultless. Helpful advice and quick delivery.
    By Andreas O. on 11 April 2019
    Show more

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    ND140-PR 5-1/4" Aluminum Cone Passive Radiator
    € 16,49
    € 19,95
    ND140-PR 5-1/4" Aluminum Cone Passive Radiator
    >10 In stock: delivery time 1-4 business days
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