This type of karaoke board adopts PT2399 chip, which plays the role of echo sound effects. PT2399 is a typical karaoke echo processing integrated circuit.It is widely used in CD, VCD, DVD, TV and karaoke machines. The prime amplifier of the microphone used two classic dual-transport NE5532. It is used for audio signal amplification and effective processing. The board is with a two-channel microphone input and audio hybrid technology. You can enjoy the fun of karaoke. PT2399 Microphone Amplifier Board ( XH-M273 Dual Channel ) Parameters: No. Parameter Value 1 Model XH-M173 2 Name karaoke reverberation board 3 Output load Post – level amplifier 4 Chip selection dual power AC12V 5 Machine size 100*57*17mm 6 Net Weight 62g Using Attention: 1>. Power supply is with AC double 12V transformers. 2>. The audio output part of this board needs to be connected to the amplifier plate, not the stereo. 3>. As for the scream, now all of the k-song products, when the microphone is near the speakers, they will scream. So don’t hold the microphone to the speakers. Product Details: Tested by ICStation’s Outstanding Partner 12voltvids:
