Item Name: PT2399 Digital Microphone Amplifier Board Karaoke Reverberation Board Preamp. Product DescriptionPT2399 Digital Microphone Amplifier Board Karaoke Reverberation Board Karaoke OK Amplifier Module Dual AC12VDescriptionKara OK board using the original PT2399 chip, responsible for the echo sound processing, the original PT2399 is a typical Kara 0K echo processing integrated circuits,In CD, VCD, DVD, TV audio \'Kara 0K machine a wide range of applications. Preamplifier with original dual amp NE5532 is responsible for audio signal amplification and effective processing.Two-way microphone input + audio mixing technology.Product parameter:Model: XH - M173Name: karaoke reverberation boardOutput Load :4-8ohnWorking voltage :Dual AC12VSize: 100 * 57 * 17 mmNote:1.Using AC double 12V transformer only.2.This board audio output part need connect amplifier board, can not directly connect to Audio.3.Do not face the speaker to microphone.Interface, Knob, Light Description:1.Lin GND Rin: Represents the left channel / GND / right channel of the audio input signal2.Lout GND Rout: Represents the left channel / GND / right channel of the audio output signal3.MIC1 MIC2: used to connect the microphone, the microphone\'s connector plug directly4.Music volume knob: used to adjust the background music (accompaniment) sound size5.Microphone volume knob: used to adjust the microphone sound size6.Reverb Depth Knob: Used to adjust the playback frequency of the microphone7.Reverb Time knob: Used to adjust the microphone\'s playback timePackage Included1 Pcs PT2399 Digital Microphone Amplifier Board
