10” SVC 200 Watts, 4-Ohm Subwoofer. Founded in the early 60"s in Obrigheim, Germany, MB Quart is known worldwide for designing and manufacturing innovative and technically advanced audio products. From car, marine and home loudspeakers, MB Quart products exemplify "German Engineering." The marine-grade Nautic line of subwoofers is ideal for free-air applications or the recommended enclosure installation. MB Quart most recently revolutionized the mobile loudspeaker industry with WideSphere technology that emits extra-wide sound dispersion to listeners in order to enjoy the full range of music from almost any seating position in a vehicle. Audio and marine loudspeaker systems are put through stringent tests under the most extreme environmental conditions. Decades of refinement with meticulous attention to detail and tolerances in hand-built components have earned MB Quart a distinguished reputation for quality manufacturing, unmatched reliability and extraordinary performance. Praised by countless world-wide audio press awards and critical listeners around the world, MB Quart brings extraordinary engineering expertise, experience and design philosophy to a truly global Maxxsonics brand. 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.