SLT5AD active line array comes with class D Bi-amp and DSP. Water proof painting, 2X 5" speaker with 1.35" voice coil and 1.75" voice coil driver as well. XLR input and output, high frequency compensation for long distance use. Indoor compensation for room reverberation. Limiter for speaker and driver protection. Advanced algorithms for filtering and equalization. Powerful and compact. Weight: 9kg.