The Apocalypse seris not only stand out from the crowd, it gives you more speajer for you money. Every model comes loaded with standard features like bolt-spider, high energy magnetic flux, and self cooling technologies. Each sub is gearded toward competitors competing in stock vehicles in USACi, NSPL, MECA, EMMA, DB Drag Street classes. The Apocalypse series is an excellent choice for a competitor on a smaller budget.