600W processed active subwoofer features compact bass-reflex design. 380mm (15") high excursion woofer with 75mm (3") voice coil, custom made for FBT. Frequency response from 38Hz to 120Hz. 600W RMS Class D power amplifier with switch mode power supply. Digital signal processor with 4 presets, 2 equalization with 2 LPF crossover settings. Control panel with balanced stereo combo XLR/Jack in/outs, stereo XLR HP-filter outs, volume, EQ presets, phase reversal switch 0 to 180°, 3 status LED indicators. Polyetylene cabinet enclosure with internal wooden reinforcements. M20 (20mm) top mount speaker stand socket, two integrated carrying handles. Provides additional low frequency reinforcement when used along with 2-way EVOMaxX speakers.