The underseat subwoofers from the HiFi System of a BMW M4 are designed to enhance the in-car entertainment experience. These flat-shaped subwoofers have a single voice coil and an impedance of 2 Ω, providing clear and powerful sound. Manufactured in Mexico by BMW, these black subwoofers are a perfect fit for most BMW vehicles, offering a sleek and functional solution for improving the audio. quality while driving. removed from a 2019 BMW M4 price per subwoofer
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