The careful acoustic design, RCF transducers, and composite cabinet make the HDL 20-A ideal in live sound reinforcement and reliable installed situations. The HDL 20-A system is powered from a 1200W (peak) 2-way digital amplifier and sound is processed from a powerful DSP. The processing includes cluster and HF projection correction and special new presets for indoor and high curving situations. The system features state-of-the-art RCF transducers, two powerful 10" for a solid bass reproduction and a large format 3" voice coil compression driver to deliver vocal clarity and high definition with an incredible dynamic. 1200W peak, 600W RMS 2x10" woofer, 2.5" voice coil 2" compression driver, 2" voice coil SPL power is stable at very high levels The large-format compression driver RCF CD850 is an advantage of the HDL20-A. All the vocal range is reproduced from this driver. Superior efficiency and clarity, higher pressures, and better coverage. The HDL20-A features configurable mechanics; angles between cabinets are selectable with 2 degrees resolution. In comparison with many competitors products with fixed curving, with HDL20-A is possible to create real J-shaped or spiral arrays. The RCF Precision transducers in the HDL-20A offer high power handling. The high-power woofer delivers accurate punchy bass and the custom-made compression driver offers a transparent mid-range and extreme fidelity. D LINE cabinets are molded on a special polypropylene composite material designed to dampen down vibrations, even at maximum volume settings. From molding to the final texture, D LINE offers reliability and strength for intensive use on the road.