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        12SMP-4 12" Surface Mount Poly Cone Bass-midwoofer

        GRS 12SMP-4 12" Surface Mount Poly Cone Bass-midwoofer

        €89,95

        6 In stock

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        GRS 12SMP-4 12" Surface Mount Poly Cone Bass-midwoofer

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        Brand: GRS
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        12" | 4 Ω
        12SMP-4 12" Surface Mount Poly Cone Bass-midwoofer
        12SMP-4 12" Surface Mount Poly Cone Bass-midwoofer
        12SMP-4 12" Surface Mount Poly Cone Bass-midwoofer
        12SMP-4 12" Surface Mount Poly Cone Bass-midwoofer
        12SMP-4 12" Surface Mount Poly Cone Bass-midwoofer
        12SMP-4 12" Surface Mount Poly Cone Bass-midwoofer
        € 74,34€ 89,95 6 In stock
        • -5% Purchase 4 for only € 85,45 per piece
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        12SMP-4 12" Surface Mount Poly Cone Bass-midwoofer
        12SMP-4 12" Surface Mount Poly Cone Bass-midwoofer
        12SMP-4 12" Surface Mount Poly Cone Bass-midwoofer
        12SMP-4 12" Surface Mount Poly Cone Bass-midwoofer
        12SMP-4 12" Surface Mount Poly Cone Bass-midwoofer
        12SMP-4 12" Surface Mount Poly Cone Bass-midwoofer

        Product description GRS 12SMP-4 Bass-midwoofer

        The GRS 12SMP-4 is a high-performance 12" surface-mount woofer designed to deliver extended low-frequency response and reliability in a variety of custom audio applications. Featuring an 4-ohm impedance and a robust poly cone design, this driver is engineered for precise bass reproduction with minimal distortion, making it ideal for DIY speaker builds and OEM replacements.

         

        Highlights of the GRS 12SMP-4

        • Durable damped poly cone with rubber surround ensures controlled resonance and smooth bass
        • Copper cap on the pole piece minimizes inductance and reduces distortion for cleaner sound
        • Shallow-profile steel frame for easy integration into surface-mount applications
        • Vented pole piece and aluminum voice coil former enhance cooling and thermal performance

         

        Product details GRS 12SMP-8

        GRS 12SMP-4 12" Surface Mount Woofer 4 Ohm

         

        The GRS 12SMP-4 is a versatile 12-inch woofer specifically tailored for surface-mount installations where space efficiency and low-frequency output are crucial. Its damped poly cone and rubber surround work in tandem to reduce unwanted resonances, delivering controlled and deep bass extension down to 20 Hz. A vented pole piece and aluminum voice coil former promote efficient heat dissipation, minimizing power compression during extended operation. With a sensitivity of 91.9 dB and a 90-watt RMS power handling, this driver offers a balance of power and performance. The integrated foam gasket ensures a tight cabinet seal, while the low-profile frame allows for seamless mounting in tight enclosures. Ideal for both new speaker projects and refurbishments, the GRS 12SMP-4 is a solid choice for audiophiles and DIYers alike.

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        Specifications

        Article number
        12SMP-4
        EAN
        0848864079882
        Woofer Type
        Bass-Midwoofer
        Nominal Diameter
        12"
        Power Handling (RMS)
        90 Watts
        Impedance (Z)
        4 Ω
        Sensitivity (SPL at 1m / 2.83V)
        91.9 dB
        Frequency Response
        29 - 1.500 Hz
        Voice Coil Diameter
        50 mm
        DC Resistance (Re)
        3.9 Ω
        Voice Coil Inductance (Le)
        0.41 mH
        Resonant Frequency (Fs)
        28 Hz
        Mechanical Q (Qms)
        3.1
        Electromagnetic Q (Qes)
        0.61
        Total Q (Qts)
        0.51
        Diaphragm Mass Inc. Airload (Mms)
        93 g
        Mechanical Compliance of Suspension (Cms)
        0.35 mm/N
        Surface Area of Cone (Sd)
        516 cm²
        Volume of Displacement (Vd)
        284 cm³
        BL Product (BL)
        10.2 Tm
        Compliance Equivalent Volume (Vas)
        132 Liters
        Maximum Linear Excursion (Xmax)
        5.5 mm
        Voice Coil Former
        Aluminum
        Overall Outside Diameter
        332 mm
        Overall Depth
        136 mm
        Baffle Cutout Diameter
        284 mm
        Bolt Circle Diameter
        319 mm
        # Mounting Holes
        6
        Mounting Hole Diameter
        5.5 mm

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        12SMP-4 12" Surface Mount Poly Cone Bass-midwoofer
        € 74,34
        € 89,95
        12SMP-4 12" Surface Mount Poly Cone Bass-midwoofer
        6 In stock
        Add to cart
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