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XH-M173 Karaoke Reverberation Board Microphone Amplifier Board Singing Karaoke Amplifier Module Audio Smartphone
Sold by RSB Electronic components
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From ₱40.00
Est. delivery by May 15 - May 18
Customer reviews (2)
L**a N**a
Item: Default
Hendi ko pa na try
February 10, 2025
R** C**a
Item: Default
doesnt work properly. this is a substandard product. improve the circuit. so disappointed
July 13, 2024
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Product description
Name: Karaoke Reverb Board
Model: XH-M173
Chip model: PT2399
Output load: need a power amplifier board
Power supply: AC dual 12V
Net weight: 62g
Size: 100*57*17mm
Operating instructions:
1. Connect the power input terminal to AC dual 12V power. It is recommended to use a ring-bull 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, as shown in the figure.
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.
5. 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:
1. The recommended power supply for XH-M173 is to use an AC dual 12V toroidal transformer.
2. The audio output part of this product needs to be connected to the power amplifier board, and cannot be directly connected to the speaker.
3. Regarding howling, the current 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 matter of common sense! So everyone uses pointing as much as possible. A strong microphone, just don’t face the microphone!!
PT2399 reverb chip:
The PT2399 uses a single chip echo processor integrated circuit CMOS technology. It accepts analog audio input signals. The high sampling rate ADC converts the analog signal into a bit stream, and then stores it in the internal 44KbitRAM. The bit stream will be demodulated and passed through the DAC and low-pass filter. The total delay time is determined by the internal VCO clock frequency, and the user can easily change the external resistance by changing the VCO frequency. The PT2399 carries low distortion (THD
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