Thanks for taking time to browse our website. MobileSoundWorks offers a unique selection of high-end car audio equipment at a fraction of retail prices. All MSW products are 100% New, Authentic, A-Stock merchandise with a minimum One (1) Year Warranty. Occasionally, we’ll offer crazy deals on some RB (refurbished) gear. But, we’ll never try to pass them off as new. MobileSoundWorks specializes in high-power amplifiers and subwoofers. MSW also offers some of the best woofer boxes available. Whether you’re looking for a “Built-to-Spec” custom port-tuned cabinet, or just a basic sealed pre-fab box, we have the right enclosure for you. ... More reasons to choose MobileSoundWorks