Car subwoofers with subsonic
prices on 15 models Subsonic
— the infra-low frequency filter (Finch), or “subsonic”, is designed to “cut off” the sound of a subwoofer at subsonic frequencies. Such an infra-low sound is not only inaudible to the human ear (which allows you not to waste energy on its reproduction), but can also be harmful both to the subwoofer itself and to the well-being of listeners (especially at low frequencies).
