The Genius Audio Nitro N7-12D4 series subwoofer is known as our workhorse, and we continue this tradition by its excellent performance in daily use in vehicles, this bass driver has been carefully developed to be used in medium power applications and provide great satisfaction to our fans in their daily uses in acoustic enclosures, sealed or vented, improving efficiency, power control, linearity and reliability, also guaranteeing a phenomenal bass impact.