The Q1 is a passive/active 2-way loudspeaker housing two 10" LF drivers positioned in a dipolar arrangement and a 1.7" HF compression driver fitted to a toroidal wave shaping 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 wave front. The mechanical and acoustical design of the cabinet enables vertical splay angles to be set between 0° and 14°.  Q-1A