The FBT X-SUB 115SA provides the following performance criteria: frequency response of 42Hz to 120Hz @ -6dB, maximum SPL of 135 dB peak, 1200W Class D amplifier. The FBT X-SUB 115SA provides a DSP processor with 4 presets (2 responses with 2 different cut-off frequencies). The FBT X-SUB 115SA feature 0,59\" birch plywood construction with scratch resistant black paint finish with M20 top mounted stand adapter, two FBT design aluminum 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.