- Unique performance-to-size ratio - High power 132dB continuous, 138dB peak - Fitted with integral handles - Line array emission wavefront - DSP on-board with 16 dedicated presets - Remote PC control software (RS485) The KR400S is a high performance ultra-slim powered two way system designed for small to medium wavefront systems, in both mobile and installed applications. The KR400S includes two KR400 satellites and 2 KL21ma powered subwoofers.