Lanzar VIBEX2 Vibe 2 Way Electronic Crossover Network with Remote Subwoofer Control Hi-Pass Crossover Adjustable Frequency From 80 To 2.5K Hz Lo-pass Crossover Adjustable Frequency From 35 To 400 Hz Variable Bass Boost Level From 0 To 12 dB Subwoofer Phase Shift 0/180 Degrees Hi-Pass Gain Control