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50th Anniversary Year 2022



Seas H1658-04 MU10RB-SL  - Prestige Series Zoom

Seas H1658-04 MU10RB-SL - Prestige Series

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SKU: H1658-04 MU10RB-SL

Seas MU10RB-SL H1658-04 Mid/Full Range £39.95 excl. VAT. 4” Curv woven polypropylene cone, smooth extended response. LX521 Midrange. Superb performance and clarity.

A product datasheet can be downloaded from the Product Description page.

Availability: In stock

Excl. Vat: £46.75 Incl. Vat: £56.10
Product Description


    Seas MU10RB-SL H1658-04 is an 4” midrange range driver giving extraordinary performance and sound clarity. The new Curv cone, a woven polypropylene with excellent internal damping together with perfectly matched moving parts gives a smooth, extended frequency response.

    A high loss natural rubber surround makes this driver perform its best as a midrange.

    The large, open weave fabric spider reflects very little acoustic energy to the cone, and offers excellent stiffness linearity. The stiff and stable injection moulded aluminum chassis keeps the critical components in perfect alignment. The pole piece is prolonged forwards and equipped with a deep drawn copper cap to ensure excellent linearity in the force factor and coil inductance.

    Small size combined with an excellent performance makes this driver the perfect selection for any application where limited space is a critical parameter.

    A Product Datasheet can be downloaded by clicking on the appropriate .pdf logo (where shown).

    Seas H1658-04 MU10RB-SL Datasheet

Additional Information

    Additional Information

    Seas Driver Range Seas Prestige
    Nominal Impedance 4 ohms
    Nominal Power RMS 40
    Vas ( l) 1.1
    Nominal Free Air Resonance Fs 100 Hz
    Sensitivity (2.83V/1m) 84.70 dB
    Nominal Rdc 3.3 ohms
    Qes 1.15
    Qms 1.63
    Qts 0.67
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