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    SB Acoustics SB23NRXS45-4 8" Woofer

    € 75,58€ 91,45 2 In stock: delivery time 1-4 business days
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    Product description


    • Soft low-damping rubber surround for improved transient response
    • Shorting ring in-motor system for reduced distortion
    • Vented pole piece for reduced compression
    • Vented cast-aluminum chassis for optimum strength and low compression
    • Shallow design (3-1/8" depth)
    • Non-conducting fiberglass voice coil former for minimum damping
    • CCAW voice coil for reduced moving mass
    • Long-life silver lead-wire


    Product details

    SB Acoustics SB23NRXS45-4 8" Woofer


    The SB Acoustics SB23NRXS45-4 woofer has a proprietary composition paper cone made in-house and a rigid cast frame with ventilated spider and large vented pole piece. A low damping rubber surround assures decent midrange reproduction. A shorting ring is used in the motor to reduce intermodulation distortion and improve inductance symmetry. This woofer has a large 1.75" diameter voice coil with 6.5mm x-max on a non-inductive fiberglass former.


    Article number
    Woofer Series
    NRX Series
    Woofer Type
    Nominal Diameter
    Power Handling (RMS)
    60 Watts
    Impedance (Z)
    4 ohms
    92 dB 2.83V/1m
    Voice Coil Diameter
    DC Resistance (Re)
    3.3 ohms
    Voice Coil Inductance (Le)
    0.29 mH
    Resonant Frequency (Fs)
    27 Hz
    Mechanical Q (Qms)
    Electromagnetic Q (Qes)
    Total Q (Qts)
    Diaphragm Mass Inc. Airload (Mms)
    27.2 g
    Mechanical Compliance of Suspension (Cms)
    1.33 mm/N
    Surface Area of Cone (Sd)
    216 cm2
    BL Product (BL)
    6.9 Tm
    Compliance Equivalent Volume (Vas)
    3.09 ft.³
    Maximum Linear Excursion (Xmax)
    6.5 mm


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    SB23NRXS45-4 8" Woofer
    € 75,58
    € 91,45
    SB23NRXS45-4 8" Woofer
    2 In stock: delivery time 1-4 business days
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