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The basic linear array series products were the earliest products that Calm Audio paid attention to, and were also the objects of learning and research in the past. Linear array speakers from different regions each have their own advantages and have demonstrated their unique charm at different times. The design of large, medium, and small box body shapes: the choice of distance between far, medium, and near sound fields provides more choices for various performers. While fully developing its own intellectual property equipment, Calm Audio has never forgotten the roles that once provided knowledge and driving force to the Chinese electroacoustic industry in the Chinese market. Being content with the deep valley, lurking in the situation, and feeling the presence... After being redesigned and improved by Calm Audio, these products have become more cost-effective.