KS21 is the first 21” sub manufactured by L-Acoustics, delivering high performance in a compact format, it is a perfect companion sub to the news ARCS range.
The plug-and-play simplicity of A15 and A10 Focus and Wide extends to amplification. The enclosures were designed with LA4X capabilities and 1-to-1 ratios in mind. Each LA4X amplification channel pairs with one A15, one A10, or one KS21. The 1-to-1 ratio extends to A15 and KS21, where one sub is recommended for each A15 enclosure. For A10, the recommended loudspeaker-to-sub ratio is 2-to-1. For further flexibility, ARCS also functions seamlessly with LA12X amplified controllers.
