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Audiofrog

Audiofrog GB40 4” (100 MM) AUDIOPHILE GRADE AUTOMOTIVE LOUDSPEAKER

Audiofrog GB40 4” (100 MM) AUDIOPHILE GRADE AUTOMOTIVE LOUDSPEAKER

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$74,528.00 USD
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Designed as a dedicated midrange driver for application in door panel or dashboard installations, the GB40 is optimized for an infinite baffle application or an enclosure of at least 1 liter. The GB40’s 41 mm mounting depth makes it an easy fit in locations that require a shallow midrange. Like all the GB Series midrange speakers, the GB40 includes a grille and installation kit that can be customized to blend with or highlight nearly any installation.
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  • Features

    • Treated Paper Cone
    • 1” (25 mm) Voice Coil on Fiberglass Former
    • Milled Flat Single-Layer CCAL Voice Coil
    • Copper Inductance- and Distortion-Reducing Pole Piece Cap
    • Neodymium Motor with Bucking Magnet
    • Flat, Progressive Nomex® Spider
    • Nitrile Butadiene Rubber Surround
    • Proprietary Vented Cast Aluminum Basket
    • Chrome-Plated Cast Zinc Motor Housing
    • Screw Terminals
    • All-Metal Grille and Mounting Kits Included
    • Hex Screws and Tools Included
    • Removable and Paintable Grille
    • Rub-On Grille Logos Included for Custom Installation

  • Specifications

    • Nominal Impedance: 4 Ω
    • RMS Power Handling: 100 W (with recommended crossover)
    • Peak Power Handling: 300 W (with recommended crossover)
    • Frequency Response (-3 dB): 80 Hz – 12 kHz
    • Sensitivity (2.83 V/1 M): 87 dB
    • Recommended Amplifier RMS Power Range: 20 W – 100 W
    • Recommended High Pass Filter Frequency and Slope: ≥ 110 Hz, ≥ 12 dB/oct
    • Recommended Low Pass Filter Frequency and Slope: ≤ 6 kHz, ≥ 12 dB/oct

    Thiele & Small Parameters:

    • Revc: 3 Ω
    • Levc@1kHz: 0.06 mH
    • Sd: 59.4 cm²
    • Mmd: 5.18 g
    • Mms: 5.45 g
    • Cms: 574 µM/N
    • Vas: 2.89 liters
    • Fs: 90 Hz
    • BL: 3.9 TM
    • Qms: 5
    • Qes: 0.62
    • Qts: 0.55
    • Xmax (1-way linear): 4.5 mm (3/16”)
    • Basket Displacement: 0.106 liters (0.004ft³)

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