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    SB Acoustics SB12PAC25-4 4” Aluminium Cone Mid-range Woofer

    € 21,86€ 26,45 4 In stock: delivery time 1-4 business days
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    Product description


    • Vented reinforced plastic chassis
    • Anodized aluminum cone
    • Low damping rubber surround
    • Large vented motor system
    • Long stroke linear suspension
    • Light-weight CCAW voice coil
    • Non-conducting fiberglass coil former
    • Non-resonant long life lead wires


    Product details

    SB Acoustics SB12PAC25-4 4” Aluminium Mid-range Woofer


    The SB Acoustics SB12PAC25-4 is a 4 inch mid-range woofer with an aluminium cone. The SB12PAC25-4 uses a light-weight copper coated aluminium wire voice coil to create a responsive mid-range woofer. It also has a low Fs frequency which should allow for a low crossover point in a 3-way system. 


    Article number
    Woofer Type
    Mid-range woofer
    Nominal Diameter
    Power Handling (RMS)
    30 Watts
    Impedance (Z)
    4 Ohms
    87 dB(2.83V/1m)
    Voice Coil Diameter
    25.4 mm
    Magnet Weight
    400 g
    DC Resistance (Re)
    3.1 Ohms
    Voice Coil Inductance (Le)
    0.24 mH
    Resonant Frequency (Fs)
    52.5 Hz
    Mechanical Q (Qms)
    Electromagnetic Q (Qes)
    Total Q (Qts)
    Diaphragm Mass Inc. Airload (Mms)
    6.1 g
    Mechanical Compliance of Suspension (Cms)
    1.5 mm/N
    Surface Area of Cone (Sd)
    50 cm2
    BL Product (BL)
    4.35 Tm
    Maximum Linear Excursion (Xmax)
    10 mm(p-p)
    Driver's Mechanical Losses (Rms)
    0.4 kg/s
    Cone / Diaphragm Material
    Voice Coil Wire Material
    copper coated alumimium
    Voice Coil Former
    Fibre glass
    Basket / Frame Material
    Magnet Material
    Overall Outside Diameter
    108,9 mm
    Overall Depth
    69,3 mm
    Baffle Cutout Diameter
    102 mm
    # Mounting Holes


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    SB12PAC25-4 4” Aluminium Cone Mid-range Woofer
    € 21,86
    € 26,45
    SB12PAC25-4 4” Aluminium Cone Mid-range Woofer
    4 In stock: delivery time 1-4 business days
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