The D.A.S. BiDriver is a two-way, mid-high unit which uses a co-axial speaker built into a special horn unit designed to provide high sensitivity and exceptional control of directivity. The coaxial loudspeaker 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.