Product Description: 2 x 250 W @ 4 Ohms, 2 x 500 W @ 2 Ohms, 1 x 1000 W @ 4 Ohms The Hifonics legacy is built on some of the most famous, high-performance amplifiers in the history of car audio and Zeus ZXI amplifiers assure sonically superior sound and offer incredible flexibility in creating the ultimate, unique sound system. Zeus A/B Class amplifiers provide unique line-output features making it quick and easy to connect additional multiple amplifiers. Hifonics has a 25-plus year history of designing and manufacturing megawatt amplifiers, state-of-the-art automotive speakers and start where competitive designs end when it comes to high power handling subwoofers. The two-way, three-way and component speaker systems are engineered to take the heat from a wide range of amplification classes and provide an accurate soundstage in any vehicle. With extended frequency response for use in audio or video applications, Hifonics raises performance expectations to an even higher level. Parent company, Maxxsonics USA, offers decades of combined experience and distinction with four brands MB QUART, Hifonics, Autotek and Crunch. We independently support and maintain these best-in-class brands to bring you some of the biggest, baddest and coolest products in the car, marine and home audio industry. Maxxsonics designers and engineers take great care and satisfaction in producing only the finest quality products to exceed your needs. Look for the stylized blue "M" on your product and packaging. It stands for quality, performance and power you can only get from Maxxsonics.