This Eminence KAPPA PRO-10A car speaker leverages a ferrite magnet, extended pole pieces, and a Kapton coil former to deliver a durable and expansive soundscape. With a dynamic frequency response range, expect rich texture and color to the bass sounds with sweet mids completing this highly functional setup. This performance-grade subwoofer works ideally in sealed midrange or vented bass enclosures, and can even function as a component in a bass guitar loudspeaker system. The 80-ounce magnet on this device ensures that power is focused on driving a big bass sound. With the added benefits of a cloth accordion surround as well as a vented and extended pole piece that drives sound confidently, this unit is a solid performance-grade bass choice that will impress even the most ardent audiophile.