... /DJ speaker Features: 1), 115V/230V Transfer PA/DJ power amplifier for PA Speaker usage 2), Generally use on single 15 ... of HF/LF SPL by +/-12dB 4), Accept line level signal from external musical source such as mixer, computer 5), LED ... shows "on/off" 6), Clip LED: Lights up when system signal level approaches clipping 7), RMS Power: 235W (180W+55W)