10W/20W/30W high-power amplifier module, Class D digital amplifier board, 12V/24V power supply SUNLEPHANT

Parameter characteristics
Product Name
30W digital power amplifier module
Product model
DY-AP3001
working voltage
DC: 8-24V
Working mode
Class D (PWM modulation)
Number of channels
Mono channel
Signal input
Default single ended (can be changed to differential) input
Input impedance
1k Ω
Output load
4-8 Ω
Output power (@ 1KHz)
30W @ 16V 4 Ω
20W @ 12V 4 Ω
10W @ 12V 8 Ω
15W @ 16V 8 Ω
25W @ 24V 8 Ω
Adapted speaker (30W~300W)
4 ohms (8-16V power supply)
8 ohms (8-24V power supply)
Precautions for use:
1. The recommended power supply voltage is 8-24V DC. If it exceeds 26V, the chip will burn out.
2. When connected to a 4 Ω speaker, the power supply should not exceed 16V, and when connected to an 8 Ω speaker, the power supply should not exceed 24V.
3. The recommended power supply current is 2A or above.
4. The positive and negative poles of the power supply cannot be  and the  connection chip is burned out; This module is only suitable for single power supply and cannot be connected to a negative power supply.
5. Ensure that the input sound source signal is between 0.5V and 1.5V
6. The speaker cable should not be too long, ensuring it is suitable within 1 meter
7. Pay attention to static electricity protection. Before touching the power amplifier board, release the static electricity on your hands to avoid static electricity damaging the power amplifier chip. Digital power amplifiers are sensitive to static electricity
Relatively sensitive.
8. It is recommended to use a speaker with a rated power of 30W or above to avoid overheating and burning of the speaker
Troubleshooting
1. After powering on, the speaker beeped and didn't respond
1) Check if the speaker impedance is too small and the power supply voltage is too high, causing the chip to enter DC protection due to the instantaneous high current; Attempt to lower the power supply voltage and restart.
2) Check if the power supply is too small to operate the speaker, and try replacing it with a high-power power supply. Generally, there is no problem with the 2A power adapter.
2. Playing music with "sizzling" noise
1) Replace the sound source to see if it is the inherent noise of the sound source.
2) Is it a problem with the amplifier itself when grounding the input terminal of the amplifier
3) Is the use of shielded audio cables causing noise due to cable quality issues
4) Replacing the horn, is it a problem with the horn itself
5) Replacing the power supply, is it noise caused by unstable power supply
3. Heating and smoking during speaker playback
The power of the horn is too low. Replace the high-power horn or reduce the signal input