A speaker that has a design for reproducing bass is known as a subwoofer. Subwoofers typically operate between the ranges of 20-200 Hz. Those subwoofers that are in a lower range generate a deeper tone and have no lower-mid range sound. Grade A subwoofers generally operate under 100 Hz. The subs below 100 Hz are of professional quality. Mostly, car and home audio subwoofers … [Read more...]