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. 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 Specs: Nominal Impedance: 4 Ohm 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
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