The BiDriver is comprised of a coaxial loudspeaker which incorporates a 10” cone transducer with a 4” voice coil. The massive magnet structure and top plates provide efficient heat evacuation for low power compression. The high frequency unit incorporates a 4” titanium diaphragm and voice coil assembly. The aluminum phase corrector guarantees coherent and linear frequency response. The BiDriver can be used successfully in applications requiring high intelligibility of the human voice and music reproduction not requiring bass reinforcement. The unit is capable of developing high sound pressure levels covering large distances with a clear and defined reproduction of the message. It is especially adequate for large open areas requiring a long throw. The BiDriver IP-54 can be equipped with a line transformer for distributed systems and is designed to comply with the IP-54 standards for outdoor use.