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    SB Acoustics SB12NRX25-8 4'' Midrange Woofer

    € 45,41€ 54,95 2 In stock: delivery time 1-4 business days
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    Product description

    Highlights

    • Proprietary cone material with natural fibres made in-house
    • High damping Butyl rubber surround for non-resonant sound character
    • Vented pole piece for reduced compression
    • Vented cast aluminium chassis for optimum strength and low compression
    • CCAW voice coil for reduced moving mass
    • Long life silver lead wires
    • Non-conducting fibre glass coil former for minimum damping

     

    Product details

    SB Acoustics SB12NRX25-8 4'' Midrange Woofer

     

    The SB Acoustics SB12NRX25-8 4" Midwoofer is an excellent SB Acoustics Ferrite magnet midrange/midwoofer, featuring a high efficiency low damping rubber surround. Fitted with a proprietary composition paper cone, 1" voice coil. Very open cast frame for minimal reflections. Fs 55Hz, good level extended response up to 5KHz.

    Specifications

    Article number
    SB12NRX25-8
    Woofer Series
    NRX Series
    Woofer Type
    Midwoofer
    Nominal Diameter
    4"
    Power Handling (RMS)
    30 Watts
    Impedance (Z)
    8 ohms
    Sensitivity
    85.5 dB 2.83V/1m
    Voice Coil Diameter
    1"
    DC Resistance (Re)
    6.4 ohms
    Voice Coil Inductance (Le)
    0.34 mH
    Resonant Frequency (Fs)
    57 Hz
    Mechanical Q (Qms)
    4.1
    Electromagnetic Q (Qes)
    0.41
    Total Q (Qts)
    0.37
    Diaphragm Mass Inc. Airload (Mms)
    5.2 g
    Mechanical Compliance of Suspension (Cms)
    1.49 mm/N
    Surface Area of Cone (Sd)
    50 cm2
    BL Product (BL)
    5.4 Tm
    Compliance Equivalent Volume (Vas)
    0.18 ft.³
    Maximum Linear Excursion (Xmax)
    5 mm

    Reviews

    4 from 5Based on 1 reviews
    Review this product
    4 of 5
    ... Duidelijk een product uit de oude school van Vifa...
    By Michel V. on 26 December 2020

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    SB12NRX25-8 4'' Midrange Woofer
    € 45,41
    € 54,95
    SB12NRX25-8 4'' Midrange Woofer
    2 In stock: delivery time 1-4 business days
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