PT2399 Echo board Audio Microphone Preamplifier Reverberation Echo sound

Description

Product details of PT2399 Echo board Audio Microphone Preamplifier Reverberation Echo sound
Product model:4 Channel Echo Board
Working Voltage :DC 12V
Reverberation chips:PT2399
former op-amp:JRC4558
output channel:mono
Input: AUX + four Microphones
Frequency response range:25hz~17KHZ
Size:218*54*25mm
Weight:75g
Notice:Only can use for moving-coil microphone
Kara 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

JRC4558 is responsible for audio signal amplification and effective processing.
Two-way microphone input + audio mixing technology.
Note:
1.UsE dual 12V +12v DCsupply 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 Description:
1.Lin GND Rin: Represents the left channel / GND / right channel of the audio input signal
2.Lout GND Rout: Represents the left channel / GND / right channel of the audio output signal
3.MIC1 MIC2: used to connect the microphone
4.AUX volume knob: used to adjust the background music (accompaniment) sound size
5.Microphone volume knob: used to adjust the microphone sound size
6.Echo CTRL Knob: Used to adjust the microphone\’s playback time