... stability Proaudio, Loudspeaker, speaker, line array speaker, PA speaker, outdoor speaker, subwoofer, small speaker, active speaker, self-power speaker, powered speaker, amplifier, professional amplfier, Disco speaker, chuch speaker, switching power amplifier ... WP-4 waterproof socketsSignal Distribution4×XLR Male/Female sockets; Matched speaker: 4×LA110+4×LA110S, 8×LA110.8×LA115, CM Series ...