Cerwin-Vega Mobile subwoofers have established an unsurpassed reputation for performance, quality, efficiency, and reliability under the most demanding conditions of use. Not only will you HEAR the bass, you will FEEL the bass! Our engineers have taken the rich heritage and tradition of Cerwin-Vega subwoofer design and have incorporated some of those elements into the brand new anniversary range of subwoofers beginning with the intimidating Stroker Pro series. Continuing research efforts has kept Cerwin-Vega Mobile as the industry leader in delivering the loudest and most reliable subwoofers in the market. LOUD is beautiful!