This is an Odsons 6.5" Midbus Prima AP6.5. Audison, a brand of elettromedia, known for its quality in power amplifiers. The Prima Series is an entry-grade model designed with the focus on "Live Sound" while maintaining high quality. The woofer part uses paper cones that have been treated with water repellency. Adopts FEM (Finite Element Method) simulation and optimized using Klippel R&D scan vibrometer. In addition, it adopts a large 1.3 inch (32 mm) voice coil that is rare in the competition. It combines high efficiency and power handling. With a small depth of 2.3 inches (58 mm), it is also easy to install.