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        4SMP-8 4" Surface Mount Poly Cone Bass-midwoofer

        GRS 4SMP-8 4" Surface Mount Poly Cone Bass-midwoofer

        €19,95

        10+ expected on 19-12-2025

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        GRS 4SMP-8 4" Surface Mount Poly Cone Bass-midwoofer

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        Brand: GRS
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        4" | 8 Ω
        4SMP-8 4" Surface Mount Poly Cone Bass-midwoofer
        4SMP-8 4" Surface Mount Poly Cone Bass-midwoofer
        4SMP-8 4" Surface Mount Poly Cone Bass-midwoofer
        4SMP-8 4" Surface Mount Poly Cone Bass-midwoofer
        4SMP-8 4" Surface Mount Poly Cone Bass-midwoofer
        4SMP-8 4" Surface Mount Poly Cone Bass-midwoofer
        € 16,49€ 19,95 Out of stock10+ expected on 19-12-2025
        • -5% Purchase 4 for only € 18,95 per piece
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        4SMP-8 4" Surface Mount Poly Cone Bass-midwoofer
        4SMP-8 4" Surface Mount Poly Cone Bass-midwoofer
        4SMP-8 4" Surface Mount Poly Cone Bass-midwoofer
        4SMP-8 4" Surface Mount Poly Cone Bass-midwoofer
        4SMP-8 4" Surface Mount Poly Cone Bass-midwoofer
        4SMP-8 4" Surface Mount Poly Cone Bass-midwoofer

        Product description GRS 4SMP-8 Bass-midwoofer

        Efficient 4" 8-ohm surface-mount bass-midwoofer built for compact enclosures. The 4SMP-8 delivers balanced performance with a poly cone, vented motor structure, and optimized thermal stability for small speaker systems and custom installations.

         

        Highlights of the 4SMP-8

        • Damped poly cone with rubber surround provides smooth and controlled frequency response
        • Low-profile frame design supports surface mounting in tight cabinet spaces
        • Vented pole piece and copper cap minimize power compression and lower distortion
        • Aluminum voice coil former enhances thermal performance and power handling stability

         

        Product details 4SMP-8

        4SMP-8 4" Surface-Mount Poly Cone Bass-Midwoofer

         

        The 4SMP-8 is a 4-inch surface-mount woofer engineered for small-format loudspeaker systems and custom audio installations. Featuring a damped polypropylene cone with a rubber surround, it provides reliable and natural response from 50 Hz up to 6,000 Hz, making it suitable for both bass-mid duties and wideband use in 2-way designs. Its shallow, low-profile frame allows easy integration into flush-mount enclosures, while the vented pole piece and copper cap work to reduce thermal compression and distortion. The 26 mm aluminum voice coil former ensures heat is rapidly dissipated, maintaining stability under continuous loads. An integrated foam gasket supports an airtight seal in surface-mount applications. With a sensitivity of 84.4 dB (2.83V/1m), Xmax of 4 mm, and 30 W RMS power handling, the 4SMP-8 is a versatile driver offering solid output and control in installations where space is limited and sound quality is essential.

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        Specifications

        Article number
        4SMP-8
        EAN
        0848864079745
        Woofer Type
        Bass-midwoofer
        Nominal Diameter
        4"
        Power Handling (RMS)
        30 Watts
        Impedance (Z)
        8Ω
        Sensitivity (SPL at 1m / 2.83V)
        84.4dB
        Frequency Response
        50 - 6,000Hz
        Voice Coil Diameter
        26mm
        DC Resistance (Re)
        5.5Ω
        Voice Coil Inductance (Le)
        0.58mH
        Resonant Frequency (Fs)
        63Hz
        Mechanical Q (Qms)
        3
        Electromagnetic Q (Qes)
        0.83
        Total Q (Qts)
        0.65
        Diaphragm Mass Inc. Airload (Mms)
        6.6g
        Mechanical Compliance of Suspension (Cms)
        0.97mm/N
        Surface Area of Cone (Sd)
        54cm²
        Volume of Displacement (Vd)
        21 cm³
        BL Product (BL)
        4.2T·m
        Compliance Equivalent Volume (Vas)
        4L
        Maximum Linear Excursion (Xmax)
        4mm
        Cone / Diaphragm Material
        poly
        Surround Material
        rubber
        Voice Coil Former
        aluminium
        Basket / Frame Material
        steel
        Magnet Material
        ferrite
        # Mounting Holes
        4

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        4SMP-8 4" Surface Mount Poly Cone Bass-midwoofer
        € 16,49
        € 19,95
        4SMP-8 4" Surface Mount Poly Cone Bass-midwoofer
        Out of stock
        10+ expected on 19-12-2025
        Add to cart
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