Plus One Woofer Cone Technology: HARMAN's patented woofer design delivers greater cone surface area than standard 4 in speakers, producing deeper bass and higher sensitivity without needing an external amplifier PEI Balanced Dome Tweeter: the rigid PEI dome tweeter reproduces high frequencies with clarity and zero harshness, so vocals, guitars and cymbals cut through cleanly even at higher volume in your car Laser-Etched Glass Fiber Cone: the woofer cone is reinforced with ten percent glass fiber and formed in a laser-etched mould, delivering resonant bass response plus a premium forged carbon fiber visual effect True 4-Ohm Load Design: the true 3 Ohm impedance compensates for system resistance so your factory head unit or aftermarket stereo drives these 10 cm speakers at full efficiency with no extra hardware required Engineered for Direct Fitment: precise mounting dimensions and included black mesh grilles mean these 4 in coaxial speakers install cleanly into standard factory locations with minimal modification or additional hardware
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