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T62M0001A Karaoke Reverb Board Tone Preamp Board Trebel and Bass Adjustment
1.With a negative pressure conversion circuit, so that the power supply voltage is doubled, the dynamic range is larger and not easy to be distorted;
2. The delay time is controlled by a voltage-controlled oscillator, and the potentiometer is used to adjust the time. It is more advanced than the original switch recommended by the original PDF.
3. The reverberation part refers to the design of Tianyi power amplifier. The analog stereo reverberation is made with the forward and reverse circuits. The opposite phase of the two channels is more comfortable. (NOTE: If you use a mono amplifier, the output can only be connected one channel, the other one is empty, you can&39;t connect the LR in parallel, this will cancel the reverberation signals, resulting in music and vocals.)
4.Stereo music amplification part with high and low sound control, two-way dynamic microphone amplifier circuit separate volume control, high and low sound adjustment.
Negative voltage test point: Adjust the potentiometer to make the negative voltage equal to the positive voltage of the input (Note: -12V has been adjusted at the time of shipment).
Product name: Karaoke Reverb Board
PCB Size: 178mm*55mm
Potentiometer spacing: 20mm
Working voltage: Single power supply DC12V
Net weight:150g/pc
Package :
1pc
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