The system is driven by a powerful and efficient 400 W amplifier featuring dBTechnologies’ advanced DSP processing where linear phase FIR filters allow the systems to deliver a coherent audio performance, uniform and crystal-clear from every listening position. Active 2-way speakers Bluetooth®connection 3 Channel IN 1 link OUT with link/mix switch Linear Phase FIR Filters for accurate sound reproduction DSP presets for wide versatility Soft cover included