The FBT X-SUB 118SA , 1 x 18" bass-reflex design subwoofer, is the perfect low frequency extension and the ideal companion for the FBT X-LITE and FBT X-PRO series. The FBT X-SUB 118SA provides the following performance criteria: frequency response of 38Hz to 120Hz @ -6dB, maximum SPL of 136 dB peak, 1200W Class D amplifier. The FBT X-SUB 118SA provides a DSP processor with 4 presets (2 responses with 2 different cut-off frequencies). The FBT X-SUB 118SA feature 0,70" birch plywood construction with scratch resistant black paint finish with M20 top mounted stand adapter, two FBT design aluminium handles and four optional 100mm/3,93" transport wheels. The control panel provides two channels with stereo combo XLR/jack in-outs, stereo XLR HP filter outs, level control, preset switch, 0°/180° phase reversal switch, prt-lmt led indicators.