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        ND91-8 3-1/2" Aluminum Cone Full-Range Driver 8 Ohm

        ND91-8 3-1/2" Aluminum Cone Full-Range Driver 8 Ohm


        Dayton Audio ND91-8 3-1/2" Aluminum Cone Full-Range Driver 8 Ohm

        6 reviews
        5 from 5
        6 reviews
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        € 30,12€ 36,45 10+ In stock
        • -5% Purchase 4 for only € 34,63 per piece

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        Product description

        The Dayton Audio ND91-8 3-1/2" Neo-Balanced driver balances low distortion, extended range, and surprising bass impact. Its sophisticated motor design provides the underhung 1" voice coil with extended linear travel within the magnetic field.



        • Low distortion, full-range 65 Hz to 17 kHz performance
        • Rubber-edged black anodized aluminum alloy cone
        • Large excursion capability—5.1 mm Xmax, 25 mm peak
        • Self-shielded Neo-Balanced motor structure with copper alloy shorting ring
        • 1" 4-layer underhung voice coil with polyimide former
        • 30 watts RMS power handling
        • Great for line arrays and micro monitors


        Product details

        Dayton Audio ND91-8 3-1/2" Aluminum Cone Full-Range Driver 8 Ohm


        Dayton Audio's ND91 aluminum cone full-range drivers are the latest addition to the acclaimed ND Series high output/low distortion neodymium transducers. By increasing the original ND90's voice coil diameter from 3/4" to 1" and adding a copper alloy shorting ring, the ND91-8 features even lower distortion and delivers better bass impact and dynamic range—with peak Xmax up to 25 mm!


        This high-BL version further exploits the low distortion characteristics of the Neo-Balanced motor's optimized magnetic field, making the ND91 drivers an excellent choice for full-range point-source speaker enclosures, as well as extremely accurate, high resolution line arrays.


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        Article number
        Woofer Series
        ND Series
        Woofer Type
        Nominal Diameter
        Power Handling (RMS)
        30 watts
        Power Handling (max)
        60 watts
        Impedance (Z)
        8 ohms
        Sensitivity (SPL at 1m / 2.83V)
        82.1 dB
        Frequency Response
        70 - 17,000 Hz
        Voice Coil Diameter
        25 mm
        DC Resistance (Re)
        7.8 ohms
        Voice Coil Inductance (Le)
        1.24 mH @ 1 kHz
        Resonant Frequency (Fs)
        70.7 Hz
        Mechanical Q (Qms)
        Electromagnetic Q (Qes)
        Total Q (Qts)
        Diaphragm Mass Inc. Airload (Mms)
        Mechanical Compliance of Suspension (Cms)
        1.05 mm/N
        Surface Area of Cone (Sd)
        30.4 cm²
        Volume of Displacement (Vd)
        12.2 cm³
        BL Product (BL)
        5.63 Tm
        Compliance Equivalent Volume (Vas)
        1.53 liters
        Maximum Linear Excursion (Xmax)
        5.1 mm
        Cone / Diaphragm Material
        Aluminum Cone
        Surround Material
        Voice Coil Wire Material
        Voice Coil Former
        Kapton® / Polyimide
        Basket / Frame Material
        Magnet Material
        Overall Outside Diameter
        103.5 mm
        Overall Depth
        56.4 mm
        Baffle Cutout Diameter
        85 mm
        # Mounting Holes
        Sealed Volume
        0.02 ft.³
        Sealed F3
        139 Hz
        Vented Volume
        0.04 ft.³
        Vented F3
        75 Hz

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        5 of 5
        The best midbass driver, period. It's not great as a fullrange, as it gets noticeably directional, but the things it can do down low, considering its size, are phenomenal. Great for very compact 2-way bookshelves, for example combined with ND25/ND16 and ND105PR (or two ND90PR). Also great for very compact subwoofers or soundbars.
        By Tomas K on 27 January 2023
        5 of 5
        I bought one ND91 driver and I used it in an portable speaker together with 2x DMA105 PR. Taking into account that the calculated enclosure volume is only 2 liter and the driver is built as a full-range, the bass is incredible. Both ND driver series and DMA PR series worth considering in your future projects!
        By Cristian C. on 8 December 2019
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        ND91-8 3-1/2" Aluminum Cone Full-Range Driver 8 Ohm
        € 30,12
        € 36,45
        ND91-8 3-1/2" Aluminum Cone Full-Range Driver 8 Ohm
        10+ In stock
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