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        GEMA Bookshelf Speaker Kit

        SB Acoustics GEMA Bookshelf Speaker Kit

        €2.799,95 €2.999,95

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        SB Acoustics GEMA Bookshelf Speaker Kit

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        Brand: SB Acoustics
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        GEMA Bookshelf Speaker Kit
        GEMA Bookshelf Speaker Kit
        GEMA Bookshelf Speaker Kit
        GEMA Bookshelf Speaker Kit
        GEMA Bookshelf Speaker Kit
        GEMA Bookshelf Speaker Kit
        GEMA Bookshelf Speaker Kit
        GEMA Bookshelf Speaker Kit
        GEMA Bookshelf Speaker Kit
        GEMA Bookshelf Speaker Kit
        GEMA Bookshelf Speaker Kit
        GEMA Bookshelf Speaker Kit
        € 2.479,30
        € 2.999,95
        € 2.314,01€ 2.799,95 Out of stock
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        GEMA Bookshelf Speaker Kit
        GEMA Bookshelf Speaker Kit
        GEMA Bookshelf Speaker Kit
        GEMA Bookshelf Speaker Kit
        GEMA Bookshelf Speaker Kit
        GEMA Bookshelf Speaker Kit
        GEMA Bookshelf Speaker Kit
        GEMA Bookshelf Speaker Kit
        GEMA Bookshelf Speaker Kit
        GEMA Bookshelf Speaker Kit
        GEMA Bookshelf Speaker Kit
        GEMA Bookshelf Speaker Kit

        Product description SB Acoustics GEMA Bookshelf Speaker Kit

        The SB Acoustics Gema is a large 3-way speaker kit that pays homage to the classic speakers of the 1970s, offering a retro-styled design with modern acoustic performance.

         

        Highlights of the SB Acoustics GEMA Bookshelf Speaker Kit

        • 12" SB34NRXL75-8 woofer delivers deep, well-controlled, and tuneful bass.
        • 4" SB12MNRX2-25-4 paper cone midrange ensures excellent midrange clarity.
        • 1" SB26STAC-C000-4 soft dome tweeter provides articulate and open high-frequency reproduction.
        • Cabinets & Crossovers included
        • Well-braced cabinet design with a large front slot port tuned to 28 Hz for optimal bass reflex.

         

        Product details SB Acoustics GEMA Bookshelf Speaker Kit

        SB Acoustics Gema 3-Way Speaker Kit

         

        The SB Acoustics Gema is a meticulously engineered 3-way speaker kit that combines a 12" woofer, 4" midrange, and 1" tweeter to deliver a full-range audio experience reminiscent of classic 1970s speakers. The cabinet is designed with generous proportions and a large front slot port, enhancing bass performance and overall sound quality. As an open-source kit, the Gema is fully developed and documented by SB Acoustics, allowing DIY enthusiasts the freedom to build and customize their own high-fidelity speakers using the provided plans and specifications.

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        Specifications

        Article number
        GEMA
        EAN
        9508233652252
        Woofer Series
        Woofer and Midrange NRX-serie, Tweeter Soft TW
        Nominal Diameter
        Woofer 12" Midrange 4" Tweeter 1"
        Power Handling (RMS)
        Woofer 200 Watts, Midrange 50 Watts, Tweeter 120 Watts
        Impedance (Z)
        Woofer 8 Ω, Midrange 4 Ω, Tweeter 4 Ω
        Sensitivity (SPL at 1m / 2.83V)
        Woofer 91 dB, Midrange 90.5 dB, Tweeter 91.5 dB
        Voice Coil Diameter
        Woofer 75.6 mm, Midrange 25.4 mm, Tweeter 25.4 mm
        DC Resistance (Re)
        Woofer 6.2 Ω, Midrange 3.2 Ω, Tweeter 3.2 Ω
        Voice Coil Inductance (Le)
        Woofer 1.2 mH, Midrange 0.15 mH, Tweeter 0.04 mH
        Resonant Frequency (Fs)
        Woofer 22 Hz Midrange 63.5 Hz. Tweeter 750 Hz.
        Mechanical Q (Qms)
        Woofer 5.5, Midrange 4.19, Tweeter 3.0
        Electromagnetic Q (Qes)
        Woofer 1.78, Midrange 0.35, Tweeter 1.78
        Surface Area of Cone (Sd)
        Woofer 508 cm², Misrange 50 cm², Tweeter 6.2 cm²
        Compliance Equivalent Volume (Vas)
        Woofer 205 liters, Midrange 5.3 Liters
        Maximum Linear Excursion (Xmax)
        Woofer 20 mm (p-p), Midrange 4.4 mm (p-p), Tweeter 1.2 mm (p-p)
        Overall Outside Diameter
        Woofer 346.2 mm, Midrange 123 mm, Tweeter 100 mm
        Overall Depth
        Woofer 159 mm, Midrange 70.1 mm, Tweeter 39.7 mm
        Baffle Cutout Diameter
        Woofer 305.2 mm, Midrange 98.2 mm, Tweeter 82.5 mm
        # Mounting Holes
        Woofer 8, Midrange 4, Tweeter 4
        Mounting Hole Diameter
        Woofer 5.5 mm, Midrange 4.3 mm, Tweeter 4 mm

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        GEMA Bookshelf Speaker Kit
        € 2.479,30
        € 2.999,95
        € 2.314,01
        € 2.799,95
        GEMA Bookshelf Speaker Kit
        Out of stock
        Add to cart
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