__High performance sub-bass system__ - Unique performance-to-size ratio - High power 130dB continuous, 136dB peak - Fitted with integral handles and castors - Direct radiating, long excursion 21” driver - Integrated 35mm pole adapter The KL21 is a high performance sub-bass system designed for use with small to medium wavefront systems, in both touring and install applications. It features a 2000 watt 21” drive unit with magnet structure and suspension engineered for maximum linear excursion.