Unleash the power of a tornado! Kenwood’s Tornado subwoofers feature the coolest looking cones that have been seen in a long time. The pearl mica cones feature unique ridges that serve to increase rigidity and reduce distortion. The result is super-tight, ultra-clear bass that will be sure to tickle " the little hairs" on the back of your neck. Other features include a two layer vented voice coil with extended pole piece and treated foam surround. Tornados are extremely versatile subwoofers and perform well in both sealed and vented enclosures.