The 12x Q1 is a passive 2-way loudspeaker housing two 10" LF drivers positioned in a dipolar arrangement and a 1.3" HF compression driver fitted to a toroidal waveshaping device. The 75° constant directivity horizontal dispersion pattern is maintained down to 400 Hz, while the vertical HF dispersion of 15° allows the Q1 to be used to construct vertical columns that produce a curved coherent wavefront