Behringer CX3400 Super X Pro V2, Active Crossover, 2 Respectively: 3-Way stereo or 4-way mono, 24 dB / octave Linkwitz-Riley filter, Mono-Sub switchable, LF / HF gain regular / mutable, CD horn EQ switchable, Vertex frequency tunable, Factor switching (10x), Multi-band limiter switch / variable (threshold), Limit display each way, LF Delay (max 2ms / 60cm), Phase reverse, 25 Hz subsonic filter, sym, XLR in / out with multiband limiters, Dimensions: 19