HC Series, dual-effect Karaoke amplifier providing you a perfect solution of KTV system. Exclusive use numerically simulation audio processing circuits, which makes the singer enjoy unprecedented singing! Research and develop independently the 3×DSP digital processing technology. Blue LED display, elegant big knob with blue light ring, easy to operate. Music and microphone adjusted by 7 segments equalizer. Adjustable low cut frequency, research and develop prevent howlround technology, the setting of music, microphone and starting-up volume and lock function of max volume. The mode setting of starting-up music and microphone effect, USB interactive tuning software control interface.