Detailed Product Description DSP digital KTV amplifier, Good value for money!Karaoke Amplifier, pa amplifier, power amplifier, pro audio, stereo amplifier.karaoke power amplifier, digital processor, pro sound equipment, professional audio system ... the main channel music(20Hz-200Hz).7.4 sockets of microphone.8.Professional level 20 BIT DSP reverberation echo.9.Karaoke singing enhancing ...