SONY SUBWOOFER ENCLOSURES Subwoofer enclosures from Sony are dual 12" ported high-pass type enclosures. These enclosures have pre-wired 4 Ohm impedance.
KICKER SOLO-BARIC L5 SUBWOOFERS Solo-Baric L5 Subwoofers from Kicker come with hot new look and improved design for an even mightier performance. Solo-Baric L5 utilizes SoloKon™ technology, a vacuum-formed, ultra-rigid design with vented 360-degree back bracing used to push mass quantities of air.