karaoke Mic echo DELAY pre amplifier board review & sound testing

The board uses the PT2399 integrated chipfor the echo sound processing and also use with original dual amp 4558 The original PT2399 is a typical Karaoke echo processing integrated circuits The karaoke board also uses two microphone at a time Working Voltage.- 12V DC Single Supply. The Board have 3 controls for adjusting . Mic, Echo, Audio volumes and an optional for Delay control provision.


Salcon Pre-Mic Circuit Board with Echo-https://amzn.to/3BjqDah

Dual Microphone Input Preamp Kit -https://amzn.to/3gEkM64

PT2399 Digital Microphone Amplifier Board Karaoke-https://amzn.to/3BfNDqR
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