Parameter:
Product name:Karaoke reverb board
Chip model:PT2399
Output load:need a power amplifier board
Power supply:AC dual 12V
Instructions for use:
1.Connect the power input terminal to AC dual 12V power, it is recommended to use a ring-null transformer.
2.Connect the audio input terminal to the sound source, such as mobile phone, computer, MP3, etc.
3.Connect the audio output terminal to the input terminal of the rear power amplifier board, and the power amplifier output terminal is connected to the speaker
4.Connect the microphone interface to a dynamic microphone (note: it must be a dynamic microphone). After all the connections are completed, turn on the power and sound source to use.
4.There are 4 knobs in the reverberation board, namely "music volume, microphone volume, reverberation depth, reverberation time". When in use, turn clockwise to increase, and counterclockwise to decrease.
Precautions:
It is recommended to use AC dual 12V toroidal transformer for power supply.
The audio output part needs to be connected to the power amplifier board, not directly to the speaker.
Regarding howling, the world?s K-song products, whether it is a finished product or a plate, will definitely have howling when the microphone is close to the speaker, which is absolutely impossible to eradicate. This is a common sense problem! So everyone uses pointing as much as possible. A strong microphone, just don?t point the microphone at the speaker!!