The FBT VERTUS CLA 208SA processed active subwoofer is the perfect low frequency extension and reinforcement of the CLA604A array. FBTVERTUS CLA208SA The FBT VERTUS CLA 208SA shall meet the following performance criteria: frequency response of 50Hz to 200Hz, maximum SPL of 129dB, Class D 600W RMS amplifier with switch mode power supply, 2 x 8″ custom high excursion woofers with 2″ voice coil.The FBTVERTUS CLA208SA provides a DSPprocessor with 4 available presets. The feature 15mm birch plywood construction and the front shall be protected by a heavy duty metal grille. The control panel provides combo XLR/jack stereo in & link, XLR Hi-pass out stereo, volume, preset, 0°-180° phase switch, 3 status led, Neutrik powercon in & link. The rapid latching system with pins on front serves as the base support for the CLA 604A column speaker for the expansion of the system to form a unified column with an absolute and coherent source integration.